Yu-Gi-Oh! Aqua Monsters

This is a list of all the Yu-Gi-Oh! Aqua monsters in our database.

Card Name Type ATR    LVL     ATK     DEF     Card Text Buy It
Abyss Soldier Effect Monster WATER 4 1800 1300 Once per turn: You can discard 1 WATER monster to the Graveyard to target 1 card on the field; return it to the hand.
Abyss Warrior Effect Monster WATER 4 1800 1300 Once per turn: You can discard 1 WATER monster to the Graveyard, then target 1 monster in either player's Graveyard; return that target to either the top or bottom of the Deck.
Ameba Effect Monster WATER 1 300 350 When the control of this face-up card on the field shifts to your opponent, inflict 2000 points of damage to your opponent's Life Points. This effect can only be used once as long as this card remains face-up on the field.
Amphibious Bugroth Fusion Monster WATER 5 1850 1300 Ground Attacker Bugroth + "Sentinel of the Sea"
Aqua Spirit Effect Monster WATER 4 1600 1200 This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing 1 WATER monster in your Graveyard from play. During each of your opponent's Standby Phases, you can change the battle position of 1 of your opponent's face-up Monster Cards. Once changed, the monster must remain in this position for the rest of the turn.
Aquaactress Arowana Effect Monster WATER 6 2000 2000 Once per turn: You can add 1 "Aquaactress" monster from your Deck to your hand.
Aquaactress Guppy Effect Monster WATER 2 600 600 Once per turn: You can Special Summon 1 "Aquaactress" monster from your hand.
Aquaactress Tetra Effect Monster WATER 1 300 300 Once per turn: You can add 1 "Aquarium" card from your Deck to your hand.
Aquarian Alessa Gemini Monster WATER 4 1500 500 This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect:
  • When this card destroys an opponent's monster by battle and sends it to the Graveyard, they discard 1 random card.
    • Armored Starfish Normal Monster WATER 4 850 1400 A bluish starfish with a solid hide capable of fending off attacks.
    Artillery Catapult Turtle Effect Monster WATER 4 1000 2000 You can Tribute 1 monster; Special Summon 1 "Gaia The Fierce Knight" monster, or 1 Level 5 Dragon monster, from your hand or Deck. You can only use this effect of "Artillery Catapult Turtle" once per turn.
    Barrier Statue of the Torrent Effect Monster WATER 4 1000 1000 No monsters can be Special Summoned, except for WATER monsters.
    Beastking of the Swamps Effect Monster WATER 4 1000 1100 You can substitute this card for any 1 Fusion-Material Monster. When you do this, the other Fusion-Material Monster(s) must be the correct one(s).
    Beelze Frog Effect Monster WATER 3 1200 800 Increase the ATK of this card by 300 points for each "T.A.D.P.O.L.E." in your Graveyard.
    Behegon Normal Monster WATER 4 1350 1000 With an enormous maw and massive teeth, this monstrosity is one dangerous and strange serpent from the deep.
    Blizzed, Defender of the Ice Barrier Effect Monster WATER 1 300 500 When this card is destroyed by battle and sent to the Graveyard, draw 1 card.
    Boneheimer Normal Monster WATER 3 850 400 This monster wanders the seas, sucking dry any creatures it may encounter.
    Cannonball Spear Shellfish Effect Monster WATER 2 1000 1000 While "Umi" is face-up on the field, this card is unaffected by any Spell Cards.
    Catapult Turtle Effect Monster WATER 5 1000 2000 You can Tribute 1 monster; inflict damage to your opponent equal to half the Tributed monster's ATK on the field.
    Centerfrog Effect Monster WATER 2 100 2000 Cannot be used as material for a Fusion, Synchro, Xyz, or Link Summon. If this card is Normal or Flip Summoned: Change it to Defense Position. Once per turn: You can target 1 monster in your opponent's Main Monster Zone; give your opponent control of this Defense Position card by moving it to their zone adjacent to the target, then if your opponent controls exactly 2 "Centerfrog" in the Main Monster Zone, gain control of all monsters in between those 2 cards.
    Change Slime Normal Monster WATER 1 400 300 A slime that can morph and adopt the shape and size of any monster it chooses.
    Chemicritter Carbo Crab Gemini/Effect Monster FIRE 2 700 1400 This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is a Normal Monster on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
  • During your Main Phase: You can send 1 Gemini monster from your Deck to the Graveyard, then add 1 Gemini monster from your Deck to your hand. You can only use this effect of "Chemicritter Carbo Crab" once per turn.
    • Cloudian - Eye of the Typhoon Effect Monster WIND 8 3000 1000 This card cannot be destroyed by battle. If this card is in face-up Defense Position, destroy it. When this card declares an attack change the battle position of all face-up monsters, except "Cloudian" monsters.
    Cold Enchanter Effect Monster WATER 4 1600 1200 You can discard 1 card to target 1 face-up monster on the field; place an Ice Counter on that target. This card gains 300 ATK for each Ice Counter on the field.
    Crab Turtle Ritual Monster WATER 8 2550 2500 This monster can only be Ritual Summoned with the Ritual Magic Card, "Turtle Oath". You must also offer monsters whose total Level Stars equal 8 or more as a Tribute form your Field or your hand.
    Cryomancer of the Ice Barrier Tuner Monster WATER 2 1300 0 While you control another "Ice Barrier" monster, Level 4 or higher monsters cannot declare an attack.
    Crystal Beast Emerald Tortoise Effect Monster WATER 3 600 2000 Once per turn: You can target 1 monster you control that attacked this turn; change that target to Defense Position. If this face-up card is destroyed while it is in a Monster Card Zone, you can place it face-up in your Spell & Trap Card Zone as a Continuous Spell Card, instead of sending it to the Graveyard.
    D.3.S. Frog Fusion/Effect Monster WATER 8 2500 2000 Des Frog + "Des Frog" + "Des Frog"
    A Fusion Summon of this card can only be conducted with the above Fusion Material Monsters. Increase the ATK of this card by 500 points for each "Treeborn Frog" in your Graveyard.
    Danger! Nessie! Effect Monster DARK 7 1600 2800 You can reveal this card in your hand; your opponent randomly chooses 1 card from your entire hand, then you discard the chosen card. Then, if the discarded card was not "Danger! Nessie!", Special Summon 1 "Danger! Nessie!" from your hand, and if you do, draw 1 card. If this card is discarded: You can add 1 "Danger!" card from your Deck to your hand, except "Danger! Nessie!" You can only use this effect of "Danger! Nessie!" once per turn.
    Deep Diver Effect Monster WATER 3 1000 1100 At the end of the Battle Phase, if this card was destroyed by battle and sent to the Graveyard: Choose 1 Monster Card from your Deck and place it on top of your Deck.
    Defender of the Ice Barrier Tuner Monster WATER 3 200 1600 While you control another "Ice Barrier" monster, opponent's monsters with an ATK equal to or higher than this card's DEF cannot declare an attack.
    Des Frog Effect Monster WATER 5 1900 0 When this card is Tribute Summoned successfully, you can Special Summon "Des Frog"(s) from your hand or Deck up to the same number of "T.A.D.P.O.L.E."(s) in your Graveyard.
    Dewdark of the Ice Barrier Tuner Monster WATER 2 1200 800 If the only face-up monsters you control are Level 2 or lower monsters, this card can attack your opponent directly.
    Drill Barnacle Effect Monster WATER 3 300 0 This card can attack your opponent directly. Each time this card inflicts Battle Damage to your opponent by a direct attack: This card gains 1000 ATK.
    Dupe Frog Effect Monster WATER 2 100 2000 This card's name is treated as "Des Frog" while it is face-up on the field. Your opponent cannot select another monster as an attack target. When this card is sent from the field to the Graveyard, you can add 1 "Frog" monster except "Dupe Frog" or "Frog the Jam" from your Deck or Graveyard to your hand.
    Egyptian God Slime Fusion/Effect Monster WATER 10 3000 3000 1 Aqua monster + 1 Level 10 WATER monster
    Must first be either Fusion Summoned, or Special Summoned from your Extra Deck by Tributing 1 Level 10 Aqua monster with 0 ATK. This card can be treated as 1 or 3 Tributes for the Tribute Summon of a monster. Cannot be destroyed by battle. Your opponent's monsters cannot target for attacks, and your opponent cannot target with card effects, any monsters you control, except "Egyptian God Slime".
    Escher the Frost Vassal Effect Monster WATER 4 800 1000 If your opponent controls 2 or more cards in their Spell & Trap Zone, you can Special Summon this card (from your hand).
    Evigishki Gustkraken Ritual/Effect Monster WATER 6 2400 1000 You can Ritual Summon this card with any "Gishki" Ritual Spell Card. When this card is Ritual Summoned: Look at up to 2 random cards in your opponent's hand, then shuffle 1 of them into the Deck.
    Evigishki Levianima Ritual/Effect Monster WATER 8 2700 1500 You can Ritual Summon this card with any "Gishki" Ritual Spell Card. When this card declares an attack: Draw 1 card and reveal it. If the revealed card is a "Gishki" monster, look at 1 random card in your opponent's hand.
    Evigishki Merrowgeist Xyz/Effect Monster WATER 4 2100 1600 2 Level 4 monsters
    After damage calculation, if this card destroys an opponent's monster by battle: You can detach 1 Xyz Material from this card; shuffle the destroyed monster into the Deck instead of sending it to the Graveyard.
    Evigishki Mind Augus Ritual/Effect Monster WATER 6 2500 2000 Cannot be Normal Summoned or Set. Must first be Ritual Summoned. You can Ritual Summon this card with any "Gishki" Ritual Spell Card. When this card is Ritual Summoned: Target up to 5 cards in any Graveyard(s); shuffle those targets to the Deck.
    Evigishki Soul Ogre Ritual/Effect Monster WATER 8 2800 2800 Cannot be Normal Summoned or Set. Must first be Ritual Summoned. You can Ritual Summon this card with any "Gishki" Ritual Spell Card. Once per turn: You can discard 1 "Gishki" monster to target 1 face-up card your opponent controls; shuffle it into the Deck.
    Evigishki Tetrogre Ritual/Effect Monster WATER 6 2600 2100 You can Ritual Summon this card with any "Gishki" Ritual Spell Card. Once per turn: You can declare 1 card type (Monster, Spell or Trap); your opponent can discard 1 card to negate this card's effect, otherwise both players send 1 card of the declared type from their Main Deck to the Graveyard.
    Evilswarm Ketos Effect Monster DARK 4 1750 1050 You can Tribute this card to target 1 Spell/Trap Card your opponent controls; destroy that target.
    Fire Kraken Normal Monster FIRE 4 1600 1500 A squid that thrives on fire and heat.
    Flip Flop Frog Effect Monster WATER 2 500 200 Once per turn, you can flip this card into face-down Defense Position. When this card is flipped face-up, you can return monsters your opponent controls to their owners' hand up to the number of face-up "Frog" monsters you control, except "Frog the Jam".
    Flying Penguin Normal Monster WATER 4 1200 1000 A very rare penguin that takes to the air with ears shaped like wings.
    Freezing Beast Union Monster WATER 4 1500 1000 Once per turn, during your Main Phase, if you control this monster on the field, you can equip it to your "Burning Beast" as an Equip Card, OR unequip the Union equipment and Special Summon this card in face-up Attack Position. While equipped to a monster by this card's effect, each time the equipped monster inflicts Battle Damage to your opponent, destroy 1 face-down Spell or Trap Card on the field. (1 monster can only be equipped with 1 Union Monster at a time. If the equipped monster is destroyed as a result of battle, destroy this card instead.)
    Gameciel, the Sea Turtle Kaiju Effect Monster WATER 8 2200 3000 You can Special Summon this card (from your hand) to your opponent's side of thefield in Attack Position, by Tributing 1 monster they control. If your opponent controls a "Kaiju" monster, you can Special Summon this card (from your hand) in Attack Position. You can only control 1 "Kaiju" monster. During either player's turn, when your opponent activates a card or effect, except "Gameciel, the Sea Turtle Kaiju": You can remove 2 Kaiju Counters from anywhere on the field; negate the activation, and if you do, banish that card.
    Gem-Knight Amethyst Fusion/Effect Monster EARTH 7 1950 2450 1 "Gem-Knight" monster + 1 Aqua-Type monster
    Must first be Fusion Summoned. When this card is sent from the field to the Graveyard: Return all Set Spell and Trap Cards on the field to the hand.
    Gem-Knight Aquamarine Fusion/Effect Monster EARTH 6 1400 2600 Gem-Knight Sapphire + 1 "Gem-Knight" monster
    Must first be Fusion Summoned using the above Fusion Material Monsters. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. When this card is sent from the field to the Graveyard: Target 1 card your opponent controls; return that target to the hand.
    Gem-Knight Iolite Effect Monster EARTH 4 1300 2000 This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it become an Effect Monster with this effect.
  • Once per turn: You can banish 1 "Gem-" monster from your Graveyard to target 1 "Gem-Knight" card in your Graveyard; add that target to your hand.
    • Gem-Knight Sapphire Normal Monster EARTH 4 0 2100 His Sapphire powers commands the waters to protect him from attack. His comrades trust in his silent protection.
    Genex Undine Effect Monster WATER 3 1200 600 When this card is Normal Summoned: You can send 1 WATER monster from your Deck to the Graveyard; add 1 "Genex Controller" from your Deck to your hand.
    Giant Red Seasnake Normal Monster WATER 4 1800 800 A sea-dwelling snake that attacks passing enemies with its sharp teeth.
    Giant Turtle Who Feeds on Flames Normal Monster WATER 5 1400 1800 A crimson-shelled tortoise that feeds on flames.
    Gishki Marker Effect Monster WATER 4 1600 1200 When this card is Summoned: You can add 1 "Gishki" Ritual Monster or Ritual Spell Card from your Graveyard to your hand.
    Gishki Mollusk Effect Monster WATER 4 1700 900 When this card is sent to the Graveyard by a card effect: Look at the top 3 cards of your Deck, then return them all to the top or to the bottom of the Deck, in any order.
    Gishki Reliever Effect Monster WATER 2 500 800 When this card is Normal or Flip Summoned: You can target 1 other monster you control; return that target to the hand. You must control another face-up "Gishki" monster to activate and to resolve this effect.
    Gishki Vanity Effect Monster WATER 2 1000 800 During your Main Phase: You can discard this card to activate the following effect: During this turn, your opponent cannot activate the effects of Spells, Trap, or Effect Monsters in response to the activation of a "Gishki" Ritual Spell Card or the Ritual Summon of a "Gishki" Ritual Monster.
    Gishki Zielgigas Ritual/Effect Monster WATER 10 3200 0 You can Ritual Summon this card with any "Gishki" Ritual Spell Card. Once per turn: You can pay 1000 Life Points; draw 1 card and reveal it, then, if it was a "Gishki" monster, shuffle 1 card from the field into the Deck.
    Glacial Beast Blizzard Wolf Effect Monster WATER 4 1400 700 When a monster declares an attack: You can negate the attack, and if you do, Special Summon 1 Level 4 or lower WATER monster from your hand, except "Glacial Beast Blizzard Wolf". At the start of your opponent's Battle Phase, if this card is in your GY and you control no monsters: You can Special Summon this card in Attack Position, but banish it when it leaves the field. You can only use each effect of "Glacial Beast Blizzard Wolf" once per turn.
    Glacial Beast Iceberg Narwhal Synchro/Effect Monster WATER 7 2700 1600 1 Tuner + 1+ non-Tuner WATER monsters
    Each time another monster(s) you control is destroyed by your opponent's attack or card effect: Inflict 600 damage to your opponent. During the Battle Phase, when your opponent activates a card or effect while you control another monster (Quick Effect): You can negate that effect, and if you do, destroy that card. You can only use this effect of "Glacial Beast Iceberg Narwhal" once per turn.
    Glacial Beast Polar Penguin Tuner/Effect Monster WATER 3 800 1000 If this card is Special Summoned: You can target 1 monster your opponent controls; return it to the hand. If this card on the field is destroyed by battle or card effect: You can target 1 card your opponent controls; return it to the hand. You can only use 1 "Glacial Beast Polar Penguin" effect per turn, and only once that turn.
    Gladiator Beast Retiari Effect Monster WATER 3 1200 800 When this card is Special Summoned by the effect of a "Gladiator Beast" monster, you can remove from play 1 card from your opponent's Graveyard. At the end of the Battle Phase, if this card attacked or was attacked, you can return this card to your Deck to Special Summon 1 "Gladiator Beast" monster from your Deck except "Gladiator Beast Retiari".
    Gora Turtle Effect Monster WATER 3 1100 1100 As long as this card remains face-up on the field, monsters with an ATK equal to 1900 or more cannot declare an attack.
    Gora Turtle of Illusion Effect Monster WATER 4 1200 1400 Negate the effect of Spell and Trap Cards controlled by your opponent that target this face-up card on the field.
    Graydle Alligator Effect Monster WATER 3 500 1500 If this card in your Monster Zone is destroyed by battle or Spell effect and sent to your Graveyard: You can target 1 face-up monster your opponent controls; equip this card to that target. While this card is equipped to a monster by this effect, take control of that monster. When this card leaves the field, destroy the equipped monster.
    Graydle Cobra Effect Monster WATER 3 1000 1000 If this card in your Monster Zone is destroyed by battle or Trap effect and sent to your Graveyard: You can target 1 face-up monster your opponent controls; equip this card to that target. While this card is equipped to a monster by this effect, take control of that monster. When this card leaves the field, destroy the equipped monster.
    Graydle Dragon Synchro/Effect Monster WATER 8 3000 2000 1 Aqua-Type Tuner + 1 or more non-Tuner monsters
    When this card is Synchro Summoned: You can target cards your opponent controls, up to the number of WATER monsters used for the Synchro Summon of this card; destroy them. If this card is destroyed by battle or card effect and sent to the Graveyard: You can target 1 other WATER monster in your Graveyard; Special Summon it, but its effects are negated. You can only use each effect of "Graydle Dragon" once per turn.
    Graydle Eagle Effect Monster WATER 3 1500 500 If this card in your Monster Zone is destroyed by battle or monster effect and sent to your Graveyard: You can target 1 face-up monster your opponent controls; equip this card to that target. While this card is equipped to a monster by this effect, take control of that monster. When this card leaves the field, destroy the equipped monster.
    Graydle Slime Tuner/Effect Monster WATER 5 0 2000 If this card is in your hand or Graveyard: You can target 2 "Graydle" cards you control; destroy them, and if you do, Special Summon this card. You can only use this effect of "Graydle Slime" once per turn. When Summoned this way: You can target 1 "Graydle" monster in your Graveyard; Special Summon that target in Defense Position.
    Graydle Slime Jr. Tuner/Effect Monster WATER 2 0 2000 When this card is Normal Summoned: You can target 1 "Graydle" monster in your Graveyard; for the rest of this turn, you cannot Special Summon other monsters, except WATER monsters, also Special Summon that monster, then you can Special Summon from your hand, 1 Aqua-Type monster with the same Level as the monster Special Summoned by this card's effect. When this card is destroyed by battle and sent to the Graveyard: You can Special Summon 1 "Graydle" monster from your Deck.
    Gruesome Goo Normal Monster WATER 3 1300 700 A slime boss that is definitely tougher than it looks.
    Guardian Slime Effect Monster WATER 10 0 0 If you take battle or effect damage: You can Special Summon this card from your hand. During damage calculation, if this card battles an opponent's monster (Quick Effect): You can make this card gain DEF equal to that opponent's monster's ATK during that damage calculation only. If this card is sent from the hand or field to the GY: You can add 1 Spell/Trap from your Deck to your hand that specifically lists the card "The Winged Dragon of Ra" in its text. You can only use each effect of "Guardian Slime" once per turn.
    Gunkan Suship Ikura Effect Monster FIRE 4 200 300 If you control "Gunkan Suship Shari", you can Special Summon this card (from your hand). You can only Special Summon "Gunkan Suship Ikura" once per turn this way. During your Main Phase: You can excavate the top 3 cards from your Deck, and if you do, you can either add to your hand or Special Summon 1 excavated "Gunkan Suship Shari", also shuffle the rest into your Deck. You can only use this effect of "Gunkan Suship Ikura" once per turn.
    Gunkan Suship Ikura-class Dreadnought Xyz/Effect Monster FIRE 4 2200 300 2 Level 4 monsters
    If this card is Xyz Summoned: You can apply these effects, in sequence, based on the materials used. You can only use this effect of "Gunkan Suship Ikura-class Dreadnought" once per turn.
  • "Gunkan Suship Shari": Draw 1 card.
  • "Gunkan Suship Ikura": This card can make a second attack during each Battle Phase.
    Once per turn, when your "Gunkan" monster Special Summoned from the Extra Deck inflicts battle damage to your opponent: You can target 1 card your opponent controls; destroy it.
    • Gunkan Suship Shari Normal Monster FIRE 4 2000 0 Finally got to visit that harbor specializing in Gunkan Suships that I've been curious about for a while! The premium "Shari" here is limited to 2000 Suships a year, and uses specially developed smooth aged rice, giving it extra boldness not found anywhere else. The classy atmosphere made my heart sing, too. The Gunkan Suship served had a perfect balance of vinegar, nigiri, shine, and shape, demonstrating exquisite artisanship. The owner told me, "We are introducing rich yet mellow scented EDO-FRONT red vinegar in the near future," which I'm really looking forward to. However, I was disappointed the surrounding seas were a little noisy... so, giving it 4 stars with hope for improvements in the future.
    Gunkan Suship Shirauo Effect Monster FIRE 4 200 250 If you control a "Gunkan Suship Shari", or an Xyz Monster that has "Gunkan Suship Shari" as material: You can Special Summon this card from your hand. During your Main Phase: You can Special Summon 1 "Gunkan" monster from your hand, except "Gunkan Suship Shirauo", then you can take any number of "Gunkan Suship Shari" from your Deck or GY and place them on top of your Deck in any order. You can only use each effect of "Gunkan Suship Shirauo" once per turn.
    Gunkan Suship Shirauo-class Carrier Xyz/Effect Monster FIRE 4 2200 250 2 Level 4 monsters
    If this card is Xyz Summoned: You can apply these effects, in sequence, based on the materials used. You can only use this effect of "Gunkan Suship Shirauo-class Carrier" once per turn.
  • "Gunkan Suship Shari": Draw 1 card.
  • "Gunkan Suship Shirauo": Add 1 "Gunkan" Spell/Trap from your Deck to your hand.
    While a face-up card is in a Field Zone, "Gunkan" monsters you control Special Summoned from the Extra Deck cannot be destroyed by your opponent's card effects, and gain ATK equal to their original DEF.
    • Gunkan Suship Uni Effect Monster FIRE 5 900 500 You can reveal 1 other "Gunkan" card in your hand; Special Summon this card from your hand, then apply the following effect based on the revealed card.
  • "Gunkan Suship Shari": You can Special Summon the revealed monster.
  • Other: Place the revealed card on the bottom of the Deck.
    You can target 1 "Gunkan" monster you control: Change its Level to 4 or 5, then you can add 1 "Gunkan Suship Shari" from your Deck to your hand. You can only use each effect of "Gunkan Suship Uni" once per turn.
    • Gunkan Suship Uni-class Super-Dreadnought Xyz/Effect Monster FIRE 5 2900 500 2 Level 5 monsters
    If this card is Xyz Summoned: You can apply these effects, in sequence, based on the materials used. You can only use this effect of "Gunkan Suship Uni-class Super-Dreadnought" once per turn.
  • "Gunkan Suship Shari": Draw 1 card.
  • "Gunkan Suship Uni": This card gains the ability to attack directly.
    Once per turn, during your Main Phase or your opponent's Battle Phase (Quick Effect): You can target face-up cards your opponent controls, up to the number of "Gunkan" monsters you control Special Summoned from the Extra Deck; negate their effects.
    • Hebo, Lord of the River Spirit/Effect Monster WATER 4 1800 600 Cannot be Special Summoned. If this card is Normal Summoned or flipped face-up: You can target 1 face-up monster on the field; that target is treated as a Spirit monster, also return that target to the hand during the End Phase. Once per turn, during the End Phase, if this card was Normal Summoned or flipped face-up this turn: Return it to the hand.
    Helmer, Helmsman Fur Hire Effect Monster WATER 3 0 2000 During your Main Phase: You can Special Summon 1 monster "Fur Hire" from your hand, except "Helmer, Helmsman Fur Hire". If a monster "Fur Hire" is Special Summoned to your field while you control this monster: You can discard 1 card "Fur Hire"; draw 1 card. You can only use each effect of "Helmer, Helmsman Fur Hire" once per turn.
    High Tide Gyojin Normal Monster WATER 4 1650 1300 A very agile half-fish warrior known for its relentless attacks.
    Humanoid Slime Normal Monster WATER 4 800 2000 This slime apparently has some human genes in its genetic makeup.
    Humanoid Worm Drake Fusion Monster WATER 7 2200 2000 "Worm Drake" + Humanoid Slime"
    Hyosube Normal Monster WATER 4 1500 900 This amphibian is strong on the attack, but leaves much to be desired when defending.
    Ice Hand Effect Monster WATER 4 1400 1600 When this card in your possession is destroyed by your opponent's card (either by battle, or by card effect) and sent to your Graveyard: You can target 1 Spell/Trap Card they control; destroy that target, then you can Special Summon 1 "Fire Hand" from your Deck.
    Ice Knight Effect Monster WATER 4 1300 1200 Gains 400 ATK for each Aqua monster you control. Once per turn: You can activate this effect; you can Normal Summon 1 WATER monster during your Main Phase this turn, in addition to your Normal Summon/Set (you can only gain this effect once per turn), also you cannot Normal or Special Summon monsters for the rest of this turn, except WATER monsters.
    Icejade Acti Effect Monster WATER 4 1000 1000 If this card is Normal or Special Summoned: You can send 1 WATER monster from your hand to the GY; draw 1 card. If a face-up WATER monster(s) you control is destroyed by battle or card effect, while this card is in your GY: You can banish this card; Special Summon 1 "Icejade" monster from your hand or GY, except "Icejade Acti". You can only use each effect of "Icejade Acti" once per turn.
    Icejade Tinola Effect Monster WATER 4 1000 1000 You can send 1 card from your hand to the GY, then target 1 WATER monster in your GY; send this card from the field to the GY, and if you do, Special Summon the targeted monster. If a face-up WATER monster(s) you control is destroyed by battle or card effect, while this card is in your GY: You can banish this card; Special Summon 1 "Icejade" monster from your hand or GY, except "Icejade Tinola". You can only use each effect of "Icejade Tinola" once per turn.
    Icejade Tremora Effect Monster WATER 5 1500 1500 You can send this card from your hand to the GY; Special Summon 1 WATER monster from your hand. If a face-up WATER monster(s) you control is destroyed by battle or card effect, while this card is in your GY: You can banish this card; Special Summon 1 "Icejade" monster from your hand or GY, except "Icejade Tremora". You can only use each effect of "Icejade Tremora" once per turn.
    Impcantation Chalislime Ritual/Effect Monster DARK 7 2500 1800 You can Ritual Summon this card with "Impcantation Inception". You can reveal this card in your hand; discard 1 card, and if you do, Special Summon 1 "Impcantation" monster from your Deck, also, during the End Phase, lose 2500 LP if you did not Special Summon a Ritual Monster this turn after you resolved this effect. You can send 1 "Impcantation" card from your hand or face-up field to the GY, then target 1 monster your opponent controls; destroy it. You can only use 1 "Impcantation Chalislime" effect per turn, and only once that turn.
    Island Turtle Normal Monster WATER 4 1100 2000 A huge turtle that is often mistaken for an island.
    Jellyfish Normal Monster WATER 4 1200 1500 An almost invisible, semi-transparent jellyfish that drifts in the sea.
    King of the Swamp Effect Monster WATER 3 500 1100 You can substitute this card for any 1 Fusion Material Monster. When you do this, the other Fusion Material Monster(s) must be the correct one(s). Discard this card from your hand to the Graveyard to add a "Polymerization" from your Deck to your hand. The Deck is then shuffled.
    Koa'ki Meiru Hydro Barrier Effect Monster WATER 3 1000 1900 You can return 1 "Iron Core of Koa'ki Meiru" from your hand to the top of the Deck. If you do, the effect(s) of all face-up Effect Monsters are negated until the Standby Phase of your next turn, except "Koa'ki Meiru" monsters.
    Koa'ki Meiru Ice Effect Monster WATER 4 1900 1200 During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Continuous Spell Card in your hand. You can send 1 card from your hand to the Graveyard to destroy 1 Special Summoned monster on the field.
    Lady of the Lake Tuner Monster LIGHT 1 200 1800 Cannot be used as a Synchro Material Monster, except for the Synchro Summon of a Warrior-Type monster. If this card is used for a Synchro Summon, banish it. When this card is Normal Summoned: You can target 1 "Noble Knight" Normal Monster in your Graveyard; Special Summon that target. If this card is in your Graveyard: You can target 1 Level 5 "Noble Knight" monster you control; reduce its Level by 1, and if you do, Special Summon this card from the Graveyard.
    Leviair the Sea Dragon Xyz/Effect Monster WIND 3 1800 1600 2 Level 3 monsters
    Once per turn: You can detach 1 Xyz Material from this card to target 1 banished Level 4 or lower monster; Special Summon that target to your side of the field.
    Liquid Beast Normal Monster WATER 3 950 800 A liquid life form that thrives on water.
    Live☆Twin Ki-sikil Frost Effect Monster LIGHT 2 500 0 If you control a "Lil-la" monster, you can Special Summon this card (from your hand). You can only Special Summon "Live☆Twin Ki-sikil Frost" once per turn this way. If a card(s) is added from the Main Deck to your opponent's hand by a card effect (except during the Damage Step), while you control an "Evil★Twin" monster: You can banish this card from your GY; draw 1 card. You can only use this effect of "Live☆Twin Ki-sikil Frost" once per turn.
    Mad Lobster Normal Monster WATER 3 1700 1000 A gourmet food renowned by the Dark World upper crust. It has sensational flavor.
    Magical Reflect Slime Gemini Monster WATER 3 700 1200 This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it treated as an Effect Monster with this effect: Your opponent takes all Battle Damage that you would have taken from a battle involving this card.
    Maiden of the Aqua Effect Monster WATER 4 700 2000 As long as this card remains face-up on the field, the field is treated as Umi" (however there is no increasing or decreasing of ATK/DEF due to "Umi"'s effect). If there is an active Field Spell Card on the field, this effect is not applied."
    Maryokutai Effect Monster WATER 3 900 900 You can only activate this card's effect during your opponent's turn. When your opponent activates a Spell Card, Tribute this face-up card to negate the activation of the Spell Card and destroy it.
    Mermaid Knight Effect Monster WATER 4 1500 700 While "Umi" is on the field, this card can attack twice during the same Battle Phase.
    Mermail Abyssbalaen Effect Monster WATER 7 2500 2000 You can discard 4 other "Mermail" monsters to the Graveyard; Special Summon this card from your hand. When you do: Target cards your opponent controls, up to the number of "Mermail" monsters in your Graveyard (if possible); this card gains 500 ATK, and if it does, destroy those targets (if any). You can Tribute 1 other face-up Attack Position "Mermail" monster; this card gains the following effect this turn.
  • At the start of the Damage Step, if this card battles a Defense Position monster: Destroy that monster.
    • Mermail Abyssdine Effect Monster WATER 3 1000 200 When this card is added from your Deck or Graveyard to your hand by a card effect: You can Special Summon this card from your hand. You must control a "Mermail" monster to activate and to resolve this effect. When this card is Special Summoned by the effect of a "Mermail" monster: You can target 1 Level 3 or lower "Mermail" monster in your Graveyard; Special Summon that target. You can only use 1 "Mermail Abyssdine" effect per turn, and only once that turn.
    Mermail Abyssgaios Xyz/Effect Monster WATER 7 2800 1600 2 Level 7 WATER monsters
    While this face-up card has Xyz Material, Level 5 or higher monsters cannot attack. Once per turn, during either player's turn: You can detach 1 Xyz Material from this card; negate the effects of all face-up monsters your opponent currently controls that have less ATK than this card, until the end of the turn.
    Mermail Abyssgunde Effect Monster WATER 3 1400 800 If this card is discarded to the Graveyard: You can target 1 "Mermail" monster in your Graveyard, except "Mermail Abyssgunde"; Special Summon that target. You can only use the effect of "Mermail Abyssgunde" once per turn.
    Mermail Abysshilde Effect Monster WATER 3 1300 400 If this card is sent to the Graveyard: You can Special Summon 1 "Mermail" monster from your hand, except "Mermail Abysshilde". You can only use the effect of "Mermail Abysshilde" once per turn.
    Mermail Abysslinde Effect Monster WATER 3 1500 1200 If this card on the field is destroyed and sent to the Graveyard: You can Special Summon 1 "Mermail" monster from your Deck, except "Mermail Abysslinde". You can only use the effect of "Mermail Abysslinde" once per turn.
    Mermail Abyssnerei Effect Monster WATER 3 1200 2000 (Quick Effect): You can discard this card, then target 1 WATER monster you control; destroy 1 other WATER monster in your hand or field, and if you do, the targeted monster gains ATK/DEF equal to the destroyed monster's original ATK/DEF, until the end of this turn. If this card is sent from the field to the GY: You can draw 1 card, then discard 1 card. You can only use each effect of "Mermail Abyssnerei" once per turn.
    Mermail Abyssocea Effect Monster WATER 3 1100 1900 You can target 1 "Mermail" monster you control; Special Summon any number of Level 4 or lower "Mermail" monsters from your Deck whose combined Levels are less than or equal to the Level of that monster, then send that monster to the Graveyard. You can only use the effect of "Mermail Abyssocea" once per turn.
    Mermail Abyssteus Effect Monster WATER 7 1700 2400 You can discard 1 other WATER monster to the Graveyard; Special Summon this card from your hand. When you do: Add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.
    Metallizing Parasite - Lunatite Union Monster WATER 7 1000 500 Once per turn, during your Main Phase, if you control this monster on the field, you can equip it to a face-up monster on your side of the field as an Equip Card, OR unequip the Union equipment and Special Summon this card in face-up Attack Position. While equipped to a monster by this card's effect, that monster will be unaffected by the effects of Spell Cards controlled by your opponent. (1 monster can only be equipped with 1 Union Monster at a time. If the monster that this card is equipped to is destroyed as a result of battle, destroy this card instead.)
    Metallizing Parasite - Soltite Union Monster WATER 7 1000 500 Once per turn, you can either: Target 1 face-up monster you control; equip this card to that target, OR: Unequip this card and Special Summon it in face-up Attack Position. While equipped by this effect, the equipped monster cannot be targeted or destroyed by the effects of your opponent's monsters. (A monster can only be equipped with 1 Union Monster at a time. If the equipped monster would be destroyed, destroy this card instead.)
    Mistar Boy Link/Effect Monster WATER 1400 LINK-2 2 WATER monsters
    All WATER monsters on the field gain 500 ATK and DEF, also all FIRE monsters on the field lose 400 ATK and DEF. If this card is destroyed by battle or card effect: You can target 1 WATER monster in your GY; add it to your hand. You can only use this effect of "Mistar Boy" once per turn.
    Mobius the Frost Monarch Effect Monster WATER 6 2400 1000 When this card is Tribute Summoned, you can select up to 2 Spell or Trap Cards on the field. Destroy them.
    Mobius the Mega Monarch Effect Monster WATER 8 2800 1000 You can Tribute Summon this card by Tributing 1 Tribute Summoned monster. When this card is Tribute Summoned: You can target up to 3 Spell/Trap Cards on the field; destroy those targets. If this card was Tribute Summoned by Tributing a WATER monster, add this additional effect.
  • Your opponent cannot activate the targeted cards in response to this effect's activation.
    • Mucus Yolk Effect Monster DARK 3 0 100 This card can attack your opponent's Life Points directly. Each time this card inflicts Battle Damage to your opponent's Life Points, increase the ATK of this card by 1000 points during your next Standby Phase. The ATK increase lasts as long as this card remains face-up on the field.
    Nemeses Umbrella Effect Monster WATER 3 1500 400 You can target 1 of your banished monsters, except "Nemeses Umbrella"; Special Summon this card from your hand, and if you do, shuffle that target into the Deck. You can target 1 "Nemeses" monster in your GY, except "Nemeses Umbrella"; add it to your hand. You can only use each effect of "Nemeses Umbrella" once per turn.
    Nightmare Penguin Effect Monster WATER 4 900 1800 When this card is flipped face-up, select 1 card your opponent controls, and return it to the hand. All face-up WATER monsters you control gain 200 ATK.
    Nopenguin Effect Monster WATER 3 1600 100 During either player's turn, when an effect of a "Penguin" monster is activated: Special Summon this card from your Graveyard. You can only use this effect of "Nopenguin" once per turn. If a card would be returned from the field to the hand by the effect of a "Penguin" card, banish it instead.
    Number 101: Silent Honor ARK Xyz/Effect Monster WATER 4 2100 1000 2 Level 4 monsters
    You can detach 2 Xyz Materials from this card, then target 1 Special Summoned monster your opponent controls in face-up Attack Position; attach it to this card as a face-up Xyz Material. You can only use this effect of "Number 101: Silent Honor ARK" once per turn. If this face-up card would be destroyed, you can detach 1 Xyz Material from this card instead.
    Number 21: Frozen Lady Justice Xyz/Effect Monster WATER 6 500 500 2 Level 6 monsters
    You can also Xyz Summon this card by detaching 1 Xyz Material from a Rank 5 Xyz Monsteryou control, then using that Xyz Monster as the Xyz Material. (Xyz Materials attached to that monster also become Xyz Materials on this card.) This card gains 1000 ATK for each Xyz Material attached to it. Once per turn: You can detach 1 Xyz Material from this card; destroy allDefense Position monsters your opponent controls.
    Number 4: Stealth Kragen Xyz/Effect Monster WATER 4 1900 1500 2 Level 4 WATER monsters
    All face-up monsters on the field become WATER. Once per turn, during the Main Phase (Quick Effect): You can destroy 1 WATER monster your opponent controls, and if you do, inflict damage to your opponent equal to half the ATK it had on the field. If this Xyz Summoned card is destroyed: You can Special Summon "Stealth Kragen Spawn(s)" from your Extra Deck, up to the number of materials this card had, then you can attach up to 1 WATER monster from your GY to each of those Special Summoned monsters as material.
    Number C101: Silent Honor DARK Xyz/Effect Monster WATER 5 2800 1500 3 Level 5 monsters
    Once per turn: You can target 1 Special Summoned monster your opponent controls; attach it to this card as a face-up Xyz Material. When this card is destroyed and sent to the Graveyard while it has Xyz Material: You can Special Summon this card from your Graveyard, then gain Life Points equal to the original ATK of this card. "Number 101: Silent Honor ARK" must be in your Graveyard to activate and to resolve this effect. If this card is Special Summoned this way, it cannot attack for the rest of this turn.
    Numen erat Testudo Effect Monster WATER 5 1800 0 Neither player can Special Summon monsters with 1800 or less ATK.
    Octoberser Normal Monster WATER 5 1600 1400 With the head of a fish and the legs of an octopus, this strange creature attacks enemies by flinging spears.
    Ooguchi Effect Monster WATER 1 300 250 This monster may attack your opponent's Life Points directly.
    Oppressed People Normal Monster WATER 1 400 2000 They are oppressed, but believe they will have their freedom someday.
    Paleozoic Anomalocaris Xyz/Effect Monster WATER 2 2400 0 3 or more Level 2 monsters
    This card is unaffected by other monsters' effects. Once per turn, if a Trap Card(s) is sent from your Spell & Trap Zone to the Graveyard (except during the Damage Step): You can excavate the top card of your Deck, and if it is a Trap Card, add it to your hand. Otherwise, send it to the Graveyard. Once per turn, during either player's turn, if this card has a Trap Card as Xyz Material: You can detach 1 Xyz Material from this card, then target 1 card on the field; destroy it.
    Paleozoic Cambroraster Link/Effect Monster WATER 1200 LINK-2 2 "Paleozoic" monsters
    Unaffected by other monsters' effects. You can only use each of the following effects of "Paleozoic Cambroraster" once per turn. You can target 1 Set card in the Spell & Trap Zone; send it to the GY, and if you do, Set 1 "Paleozoic" Trap directly from your Deck. It can be activated this turn. If a Set card(s) you control would be destroyed by card effect, you can banish this card from your field or GY instead.
    Paleozoic Opabinia Xyz/Effect Monster WATER 2 0 2400 2 Level 2 monsters
    This card is unaffected by other monsters' effects. You can activate "Paleozoic" Trap Cards from your hand. If this card has a Trap Card as Xyz Material: You can detach 1 Xyz Material from this card; add 1 "Paleozoic" Trap Card from your Deck to your hand. You can only use this effect of "Paleozoic Opabinia" once per turn.
    Penguin Brave Synchro/Effect Monster WATER 6 2400 1200 1 Tuner + 1+ non-Tuner monsters
    Your opponent cannot target face-down Defense Position monsters you control with card effects. You can only use each of the following effects of "Penguin Brave" once per turn. If this card is Synchro Summoned: You can Special Summon 1 "Penguin" monster from your Deck in face-down Defense Position. When your opponent activates a monster effect (Quick Effect): You can flip 1 face-down Defense Position WATER monster you control face-up.
    Penguin Cleric Effect Monster WATER 3 600 1700 If a "Penguin" monster(s) is sent from your Monster Zone to your GY by an opponent's card, even during the Damage Step: You can target 1 of them; discard this card, and if you do, Special Summon that monster in face-down Defense Position. You can only use this effect of "Penguin Cleric" once per turn. Once per turn: You can target 1 "Penguin" monster you control; it gains 600 ATK until the end of the turn, and you gain 600 LP.
    Penguin Knight Effect Monster WATER 3 900 800 When this card is sent directly from your Deck to the Graveyard by an opponent's card effect, combine your Graveyard cards with your own Deck, shuffle them and form a new Deck.
    Penguin Ninja Flip/Effect Monster WATER 3 1400 700 FLIP: You can target up to 2 Spells/Traps your opponent controls; return them to the hand.
    You can target 1 "Penguin" monster you control; change it to face-down Defense Position. You can only use this effect of "Penguin Ninja" once per turn.
    Penguin Soldier Flip/Effect Monster WATER 2 750 500 FLIP: You can target up to 2 monsters on the field; return those targets to the hand.
    Penguin Squire Tuner/Effect Monster WATER 5 1800 600 Cannot be used as Synchro Material, except for the Synchro Summon of a WATER monster. If a monster is Set on your field (except during the Damage Step): You can Special Summon this card from your hand, then you can reduce its Level by 1 or 2. You can target 1 face-down Defense Position monster you control; change it to face-up Defense Position, and if you do, its effects are negated unless it is a "Penguin" monster. You can only use each effect of "Penguin Squire" once per turn.
    Penguin Torpedo Effect Monster WATER 3 550 300 This card can attack directly. When this card inflicts battle damage to your opponent: You can target 1 Level 6 or lower monster your opponent controls; take control of it until the End Phase, but its effects are negated, also it cannot declare an attack, while you control it. You can only use this effect of "Penguin Torpedo" once per turn. At the end of the Damage Step, if this card attacked: Destroy this card.
    Performapal Guitartle Pendulum/Effect Monster WATER 1 300 400 Once per turn: You can target 1 card in your Pendulum Zone; increase its Pendulum Scale by 2 until the end of this turn.

    Pendulum Scale: 6
    Pendulum Effect: If a "Performapal" card is activated in your other Pendulum Zone: You can draw 1 card. You can only use this effect of "Performapal Guitartle" once per turn.
    Performapal Sellshell Crab Pendulum/Effect Monster WATER 5 500 2500 Once per turn: You can target 1 Pendulum Monster you control; it gains 300 ATK for each "Performapal" monster you currently control, until the end of this turn.

    Pendulum Scale: 2
    Pendulum Effect: Once per turn, when a "Performapal" monster you control is destroyed by battle: You can target 1 "Performapal" or "Odd-Eyes" card in yourPendulum Zone; Special Summon it.
    Performapal Stamp Turtle Effect Monster WATER 4 100 1800 Once per turn: You can target up to 2 face-up monsters on the field; increase their Levels by 1.
    Performapal Turn Toad Pendulum/Effect Monster WATER 2 0 800 Once per turn, during your Battle Phase (except during the Damage Step): You can target 1 monster you control; change its battle position, and if you do, switch its current ATK and DEF until the end of this turn.

    Pendulum Scale: 3
    Pendulum Effect: Once per turn: You can target 1 face-up monster on the field; switch its current ATK and DEF until the end of this turn.
    Piwraithe the Ghost Pirate Effect Monster WATER 4 1500 500 If a face-up WATER monster(s) you control, except "Piwraithe the Ghost Pirate", is destroyed by battle or card effect, while this card is in your GY: You can Special Summon this card (but banish it when it leaves the field), and if you do, it gains 100 ATK for each WATER monster in your GY, until the end of the next turn. You can only use this effect of "Piwraithe the Ghost Pirate" once per turn.
    Poison Draw Frog Effect Monster WATER 2 100 100 When this face-up card on the field is sent to the Graveyard (unless it was attacked while face-down and destroyed as a result of battle), you can draw 1 card from your Deck.
    Prank-Kids Dropsies Effect Monster WATER 2 1000 1000 If this card is sent to the GY as material for the Fusion or Link Summon of a "Prank-Kids" monster: You can gain 1000 LP, then you can Special Summon 1 "Prank-Kids" monster from your hand or Deck in Defense Position, except "Prank-Kids Dropsies". You can only use this effect of "Prank-Kids Dropsies" once per turn.
    Prank-Kids Rip-Roarin-Roaster Link/Effect Monster WATER 3000 LINK-4 2+ "Prank-Kids" monsters
    Must be Link Summoned. (Quick Effect): You can Tribute this card; destroy all Spell and Traps your opponent controls. If this card in your possession is sent to your GY by your opponent's card: You can target 1 card in your GY, except a Link Monster; add it to your hand. You can only use this effect of "Prank-Kids Rip-Roaring-Roaster" once per turn.
    Prank-Kids Weather Washer Fusion/Effect Monster WATER 5 2000 0 2 "Prank-Kids" monsters
    If your "Prank-Kids" monster attacks, your opponent cannot activate cards or effects until the end of the Damage Step. During your opponent's turn (Quick Effect):You can Tribute this card, then target 2 "Prank-Kids" non-Fusion Monsters with different names in your GY: Special Summon them. They cannot be destroyed by battle this turn. You can only use this effect of "Prank-Kids Weather Washer" once per turn.
    Prior of the Ice Barrier Effect Monster WATER 2 1000 400 If you control a face-up "Ice Barrier" monster, you can Special Summon this card (from your hand). You cannot Special Summon any Level 5 or higher monsters the turn you use this effect. You can Tribute this card to target 1 "Ice Barrier" monster in your Graveyard, except "Prior of the Ice Barrier"; Special Summon that target.
    Psychic Kappa Normal Monster WATER 2 400 1000 An amphibian with a myriad of powers to shield it from enemy attacks.
    Puny Penguin Effect Monster WATER 1 400 200 After this card has been flipped face-up, when it is sent to the Graveyard: Target 1 "Penguin" monster in your Graveyard, except "Small Penguin"; Special Summon it in face-up Attack Position or face-down Defense Position.
    Reactor Slime Effect Monster WATER 4 500 500 During your Main Phase: You can activate this effect; Special Summon 2 "Slime Tokens" (Aqua/WATER/Level 1/ATK 500/DEF 500), also you cannot Normal or Special Summon monsters for the rest of this turn, except Divine-Beast monsters. During the Battle Phase (Quick Effect): You can Tribute this card; Set 1 "Metal Reflect Slime" from your hand, Deck, or GY. It can be activated this turn. You can only use each effect of "Reactor Slime" once per turn.
    Red Archery Girl Normal Monster WATER 4 1400 1500 A mermaid archer that hides in a protective shell, waiting for the right moment to strike.
    Revival Jam Effect Monster WATER 4 1500 500 When this card is destroyed by battle and sent to the Graveyard: You can pay 1000 Life Points; Special Summon it in face-up Defense Position during your next turn's Standby Phase.
    Ritual Beast Ulti-Pettlephin Fusion/Effect Monster WIND 6 200 2800 1 "Ritual Beast Tamer" monster + 1 "Spiritual Beast" monster
    Must be Special Summoned (from your Extra Deck) by banishing the above cards you control, and cannot be Special Summoned by other ways. (You do not use "Polymerization".) Cannot be destroyed by card effects. During either player's turn: You can return this card you control to the Extra Deck, then target 2 of your banished monsters (1 "Ritual Beast Tamer" monster and 1 "Spiritual Beast" monster); Special Summon them in Defense Position.
    Roaring Ocean Snake Fusion Monster WATER 6 2100 1800 Mystic Lamp + "Hyosube"
    Ronintoadin Effect Monster WATER 2 100 2000 This face-up card's name is treated as "Des Frog". You can remove from play 1 "Frog" monster in your Graveyard, except "Frog the Jam", to Special Summon this card from your Graveyard. This card cannot be used as a Synchro Material Monster.
    Sea Kamen Normal Monster WATER 4 1100 1300 A merciless monster that tears opponents to shreds with razor-like claws.
    Secret Guards of the Ice Barrier Effect Monster WATER 2 100 1600 Face-up "Ice Barrier" monsters you control cannot be targeted by the effects of your opponent's Effect Monsters.
    Sentinel of the Seas Normal Monster WATER 4 1300 1000 A merman warrior dedicated to defending the ocean against anyone who would defile it.
    Servant of Catabolism Effect Monster LIGHT 3 700 500 This monster may attack your opponent's Life Points directly.
    Silent Sea Nettle Effect Monster WATER 4 800 1300 If you control a WATER monster: You can Special Summon this card from your hand. You cannot Special Summon monsters, except WATER monsters, the turn you activate this effect. You can banish this card from your GY, then target up to 3 WATER monsters in your GY; shuffle them into the Deck. You can only use each effect of "Silent Sea Nettle" once per turn.
    Skull Kraken Effect Monster DARK 3 600 1600 When this card is Normal Summoned: You can target 1 face-up Spell Card your opponent controls; destroy that target. Once per turn: You can change the battle position of this card.
    Slime Toad Normal Monster WATER 2 700 500 A slime with the head of a frog, it attacks by croaking terribly.
    Slushy Effect Monster WATER 2 0 0 When this card is Normal Summoned: You can send 1 "Slushy" from your Deck to the Graveyard. If you have 3 copies of "Slushy" total, either banished and/or in your Graveyard (combined): You can banish this card from your Graveyard to target 1 Level 5 or higher Sea Serpent-Type monster in your Graveyard; Special Summon that target. You can only use the Special Summoning effect of "Slushy" once per turn.
    Snowman Eater Effect Monster WATER 3 0 1900 When this card is flipped face-up: Target 1 face-up monster on the field; destroy that target.
    Spiritual Beast Pettlephin Effect Monster WIND 4 0 2000 Once per turn: You can banish 1 "Ritual Beast" card from your hand, then target 1 card your opponent controls; return it to the hand. You can only Special Summon "Spiritual Beast Pettlephin(s)" once per turn.
    Squirt Squid Effect Monster WATER 2 0 1800 Once per turn, when this card is targeted for an attack by an opponent's monster: You can move this card you control to another of your Main Monster Zones, then, Special Summon 1 "Squid Ink Token" (Aqua/WATER/Level 2/ATK ?/DEF 0). This Token's ATK becomes that opponent's monster's ATK. While this card is in your leftmost or rightmost Main Monster Zone, your opponent's monsters with ATK less than or equal to this card's DEF cannot target it for attacks.
    Star Boy Effect Monster WATER 2 550 500 As long as this card remains face-up on the field, increase the ATK of all WATER monsters by 500 points and decrease the ATK of all FIRE monsters by 400 points.
    Starfish Effect Monster WATER 3 300 300 Once per turn: You can increase the Levels of all "Starfish" you currently control by 1
    Stealth Kragen Spawn Xyz/Effect Monster WATER 4 1900 1500 2 Level 4 WATER monsters
    Once per turn, during the Main Phase (Quick Effect): You can destroy 1 WATER monster your opponent controls. If this card, Special Summoned by the effect of a "Number" Xyz Monster, is destroyed: You can Special Summon other "Stealth Kragen" monsters from your GY, up to the number of materials this card had, then you can attach up to 1 WATER monster from your GY to each of those Special Summoned monsters as material.
    Submarine Frog Effect Monster WATER 2 1200 600 During battle between this attacking card and a Defense Position monster whose DEF is lower than the ATK of this card, inflict the difference as Battle Damage to your opponent.
    Substitoad Effect Monster WATER 1 100 2000 You can Tribute 1 monster to Special Summon 1 "Frog" monster from your Deck, except "Frog the Jam". "Frog" monsters, except "Frog the Jam", cannot be destroyed by battle.
    Subterror Behemoth Phospheroglacier Flip/Effect Monster EARTH 8 2600 2500 FLIP: You can send 1 card from your Deck to the Graveyard. You can only use this effect of "Subterror Behemoth Phospheroglacier" once per turn.
    When a face-up monster you control is flipped face-down, if you control no face-up monsters: You can Special Summon this card from your hand in Defense Position. Once per turn: You can change this card to face-down Defense Position.
    Suijin Effect Monster WATER 7 2500 2400 Reduct the ATK of an opponent's monster attacking this card to 0. This effect can be used only once. The card's owner chooses when to activate this effect.
    Swap Frog Effect Monster WATER 2 1000 500 You can discard 1 WATER monster to Special Summon this card from your hand. When this card is Summoned, you can select and send 1 Level 2 or lower Aqua-Type WATER monster from your Deck or your side of the field to the Graveyard. Once per turn, you can return 1 monster you control to your hand to Normal Summon 1 "Frog" monster, except "Swap Frog" or "Frog the Jam", in addition to your Normal Summon or Set this turn.
    T.A.D.P.O.L.E. Effect Monster WATER 1 0 0 When this card on your side of the field is destroyed as a result of battle and sent to your Graveyard, you can add any "T.A.D.P.O.L.E."(s) from your Deck to your hand. Then shuffle your Deck.
    Testudo erat Numen Effect Monster WATER 1 0 1800 Neither player can Special Summon monsters with 1800 or more ATK.
    The Furious Sea King Normal Monster WATER 3 800 700 Grand King of the Seven Seas, he's able to summon massive tidal waves to drown the enemy.
    The Great Emperor Penguin Effect Monster WATER 5 1800 1500 You can Tribute this card; Special Summon up to 2 "Penguin" monsters from your Deck, except "The Great Emperor Penguin".
    The Tripper Mercury Effect Monster WATER 8 2000 2000 When this card is Tribute Summoned: You can change all monsters on the field to face-up Attack Position. You can Tribute 3 monsters to Tribute Summon (but not Set) this card. If Summoned this way, while this card is on the field, all monsters your opponent controls lose ATK equal to their original ATK. This card can make a secondattack during each Battle Phase.
    Toadally Awesome Xyz/Effect Monster WATER 2 2200 0 2 Level 2 Aqua-Type monsters
    Once per turn, during the Standby Phase: You can detach 1 Xyz Material from this card; Special Summon 1 "Frog" monster from your Deck. Once per turn, during either player's turn, when your opponent activates a Spell/Trap Card, or monster effect: You can send 1 Aqua-Type monster from your hand or face-up from your field to the Graveyard; negate the activation, and if you do, destroy that card, then you can Set it to your field. If this card is sent to the Graveyard: You can target 1 WATER monster in your Graveyard; add it to your hand.
    Toon Mermaid Toon Monster WATER 4 1400 1500 This card cannot be Normal Summoned or Set. This card can only be Special Summoned while you control "Toon World". You can Special Summon this card from your hand (but Tributes are required if it is Level 5 or higher). This card cannot attack during the turn it is Summoned. This card cannot attack unless you pay 500 Life Points. When "Toon World" is destroyed, destroy this card. If your opponent doesn't control a Toon Monster, this card can attack your opponent directly. If your opponent controls a face-up Toon Monster, you must select it as an attack target.
    Tradetoad Effect Monster WATER 1 100 2000 Once per turn, you can Tribute 1 Aqua-Type monster to select 1 "Frog" monster in your Graveyard, except "Frog the Jam". Special Summon that monster from your Graveyard.
    Treeborn Frog Effect Monster WATER 1 100 100 During your Standby Phase, if this card is in your Graveyard and you do not control a face-up "Treeborn Frog": You can Special Summon this card. You must control no Spell/Trap Cards to activate and to resolve this effect.
    Tribe-Infecting Virus Effect Monster WATER 4 1600 1000 Discard 1 card from your hand and declare 1 Type of monster. Destroy all face-up monsters of the declared Type on the field.
    Turtle Bird Normal Monster WATER 6 1900 1700 An unusual turtle that not only swims at tremendous speeds, but can also sail across the skies.
    Turtle Tiger Normal Monster WATER 4 1000 1500 A tiger encased in a protective shell that attacks with razor-sharp fangs.
    Turu-Purun Normal Monster WATER 2 450 500 A strange, one-eyed monster that can fell an enemy with a single stab of its spear.
    Twin Long Rods #2 Normal Monster WATER 3 850 700 An amphibious creature with two whip-like tails.
    Uminotaurus Effect Monster WATER 4 1700 1000 If a Fish, Sea Serpent, or Aqua-Type monster you control attacks a Defense Position monster, inflict piercing Battle Damage to your opponent.
    Unformed Void, the Fictitious King Xyz/Effect Monster LIGHT 4 0 0 3 Level 4 monsters
    Once per turn, during your opponent's Main Phase: You can detach 1 Xyz Material from this card; this card gains ATK and DEF equal to the total ATK of all face-up Xyz Monsters your opponent currently controls (this is a Quick Effect).
    Unifrog Effect Monster WATER 2 400 400 This card can attack your opponent directly. When this card successfully attacks directly, if you control a "Frog" monster other than "Frog the Jam" or "Unifrog" you can destroy 1 Spell or Trap your opponent controls.
    Violent Rain Normal Monster WATER 4 1550 800 This monster can call forth sudden torrents of battering rain.
    Vortex Trooper Effect Monster WIND 3 0 600 When this card is Normal Summoned, you can shuffle 2 cards from your hand into your Deck, then draw 2 cards. After this card is destroyed, draw 1 card.
    Warrior of Atlantis Effect Monster WATER 4 1900 1200 You can discard this card to the Graveyard to add 1 "A Legendary Ocean" from your Deck to your hand.
    Water Magician Normal Monster WATER 4 1400 1000 This monster swamps an opponent with an almost endless supply of water.
    Water Omotics Normal Monster WATER 4 1400 1200 Transforms the water overflowing from a jar into attacking dragons.
    Water Spirit Tuner Monster WATER 1 400 1200 This ancient water spirit haunts the glacial monoliths of the Antarctica. It has the power to seep into the pores of any substance and chill it to the bone.
    Weather Report Flip/Effect Monster WATER 4 950 1500 FLIP: Destroys all opponent's face-up "Swords of Revealing Light" on the field. If "Swords of Revealing Light" is destroyed, you can perform your Battle Phase twice this turn (or your next turn, if activated during your opponent's turn).
    Wetha Normal Monster WATER 3 1000 900 A spirit that controls rain and is capable of summoning hurricanes to blow the enemy away.
    Wind-Up Snail Effect Monster WATER 2 100 2000 During your Main Phase: You can target 1 Set card on the field; return that target to the hand. This effect can be used only once while this card is face-up on the field.
    Wingtortoise Effect Monster WIND 3 1500 1400 When a face-up Fish, Sea Serpent, or Aqua-Type monster(s) you control is banished: You can Special Summon this card from your hand or Graveyard. (The banished monster(s) must be Fish, Sea Serpent, or Aqua-Type even after being banished.)
    Yado Karu Effect Monster WATER 4 900 1700 When this card is changed from Defense Position to Attack Position, you can place any number of cards from your hand at the bottom of your Deck in any order you desire.
    Yomi Ship Effect Monster WATER 3 800 1400 When this card is destroyed and sent to the Graveyard as a result of battle, destroy the monster that destroyed this card.
    Zone Eater Effect Monster WATER 1 250 200 A monster attacked by this card will be destroyed during the End Phase of the 5th turn after the attack.
    ZW - Ultimate Shield Effect Monster EARTH 4 0 2000 When this card is Normal or Special Summoned: You can target 1 of your banished Xyz Monsters; Special Summon that target in face-up Defense Position. You can target 1 "Utopia" monster you control; equip this monster on the field to that target. It gains 2000 DEF. You can only control 1 face-up "ZW - Ultimate Shield".
    Card Name Type ATR    LVL     ATK DEF Card Text Buy It
       This set contains 212 cards.