| SD4-EN001 |
Ocean Dragon Lord - Neo-Daedalus
| Effect Monster | Water | Sea Serpent | 8 | 2900 | 1600 | Ultra Rare | "Send "Umi" on your side of the field to the Graveyard to send all cards in both players' hands and on the field to the Graveyard, except this card." |
| SD4-EN002 |
7 Colored Fish
| Monster | Water | Fish | 4 | 1800 | 800 | Common | A rare rainbow fish that has never been caught by mortal man. |
| SD4-EN003 |
Sea Serpent Warrior of Darkness
| Monster | Water | Sea Serpent | 4 | 1800 | 1500 | Common | "A warrior who defends the world of the Sea of Darkness. He prides himself on his fighting prowess both on the ground and, of course, in the water." |
| SD4-EN004 |
Space Mambo
| Monster | Water | Fish | 4 | 1700 | 1000 | Common | A Space Mambo floating in the vast universe. This living relic was found in the ruins of a super civilization on Alphard 4. |
| SD4-EN005 |
Mother Grizzly
| Effect Monster | Water | Beast-Warrior | 4 | 1400 | 1000 | Common | "When this card is sent to the Graveyard as a result of battle, you can Special Summon 1 WATER monster with an ATK of 1500 or less in face-up Attack Position from your Deck. Then shuffle your Deck." (Note: There are 3 copies of this card in the deck) |
| SD4-EN006 |
Star Boy
| Effect Monster | Water | Aqua | 2 | 550 | 500 | Common | "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." |
| SD4-EN007 |
Tribe-Infecting Virus
| Effect Monster | Water | Aqua | 4 | 1600 | 1000 | Common | Discard 1 card from your hand and declare 1 Type of monster. Destroy all face-up monsters of the declared Type on the field. |
| SD4-EN008 |
Fenrir
| Effect Monster | Water | Beast | 4 | 1400 | 1200 | Common | "This card cannot be Normal Summoned or Set. This card can only be Special Summoned by removing 2 WATER monsters in your Graveyard from play. When this card destroys an opponent's monster as a result of battle, your opponent skips his/her next Draw Phase." (Note: There are 2 copies of this card in the deck) |
| SD4-EN009 |
Amphibious Bugroth MK-3
| Effect Monster | Water | Machine | 4 | 1500 | 1300 | Common | "As long as "Umi" remains face-up on the field, this card can attack your opponent's Life Points directly." |
| SD4-EN010 |
Levia-Dragon - Daedalus
| Effect Monster | Water | Sea Serpent | 7 | 2600 | 1500 | Common | "Send "Umi" on your side of the field to the Graveyard to destroy all cards on the field except this card." |
| SD4-EN011 |
Mermaid Knight
| Effect Monster | Water | Aqua | 4 | 1500 | 700 | Common | "As long as "Umi" remains face-up on the field, this card can attack twice during the same Battle Phase." |
| SD4-EN012 |
Mobius the Frost Monarch
| Effect Monster | Water | Aqua | 6 | 2400 | 1000 | Common | "When this card is Tribute Summoned successfully, you can setroy up to 2 Spell or Trap Cards on the field." |
| SD4-EN013 |
Unshaven Angler
| Effect Monster | Water | Fish | 4 | 1500 | 1600 | Common | "If you Tribute Summona WATER monster, you can treat this 1 monster as 2 Tribute Monsters for the Tribute Summon." |
| SD4-EN014 |
Creeping Doom Manta
| Effect Monster | Water | Fish | 3 | 1300 | 1200 | Common | "When this card is Normal Summoned successfully, no Trap Cards can be activated." |
| SD4-EN015 |
Snatch Steal
| Spell | n/a | Equip | n/a | n/a | n/a | Common | Take control of a monster on your opponent's side of the field that is equipped with this card. Increase your opponent's Life Points by 1000 points during each of his/her Standby Phases. |
| SD4-EN016 |
Mystical Space Typhoon
| Spell | n/a | Quick-Play | n/a | n/a | n/a | Common | Destroy 1 Spell or Trap Card on the field. |
| SD4-EN017 |
Premature Burial
| Spell | n/a | Equip | n/a | n/a | n/a | Common | "Pay 800 Life Points. Select 1 monster from your Graveyard, Special Summon it on the field in face-up Attack Position, and equip it with this card. When this card is destroyed, destroy the equipped monster." |
| SD4-EN018 |
Pot of Greed
| Spell | n/a | | n/a | n/a | n/a | Common | Draw 2 cards from your Deck. |
| SD4-EN019 |
Heavy Storm
| Spell | n/a | | n/a | n/a | n/a | Common | Destroy all Spell and Trap Cards on the field. |
| SD4-EN020 |
A Legendary Ocean
| Spell | n/a | Field | n/a | n/a | n/a | Common | "This card's name is treated as "Umi". Downgrade all WATER monster in both player's hand and on the field by 1 Level. Increases the ATK and DEF of all WATER monsters by 200 points." (Note: There are 3 copies of this card in the deck) |
| SD4-EN021 |
Creature Swap
| Spell | n/a | | n/a | n/a | n/a | Common | Both players select 1 monster from their respective sides of the field and switch control of those monsters with each other. The selected monsters cannot change their battle positions this turn. |
| SD4-EN022 |
Reload
| Spell | n/a | Quick-Play | n/a | n/a | n/a | Common | Add your hand to your Deck and shuffle it. Then draw the same number of cards that you added to your Deck. (Note: There are 2 copies of this card in the deck) |
| SD4-EN023 |
Salvage
| Spell | n/a | | n/a | n/a | n/a | Common | Add 2 WATER monster with an ATK of 1500 or less each in your Graveyard to your hand. (Note: There are 2 copies of this card in the deck) |
| SD4-EN024 |
Hammer Shot
| Spell | n/a | | n/a | n/a | n/a | Common | Destroy 1 face-up Attack Position monster with the highest ATK on the field. |
| SD4-EN025 |
Big Wave Small Wave
| Spell | n/a | | n/a | n/a | n/a | Common | "Destroy all face-up WATER monster on your side of the field. Then you can Special Summon WATER monster from your hand, up to the same number of monsters destroyed by this effect." |
| SD4-EN026 |
Dust Tornado
| Trap | n/a | | n/a | n/a | n/a | Common | Destroy 1 Spell or Trap Card on your opponent's side of the field. You can then Set 1 Spell or Trap Card from your hand. |
| SD4-EN027 |
Call of the Haunted
| Trap | n/a | Continuous | n/a | n/a | n/a | Common | "Select 1 monster from your Graveyard and Special Summon it in face-up Attack Position. When this card is removed from the field, destroy the monster. When the monster is destroyed, destroy this card." |
| SD4-EN028 |
Gravity Bind
| Trap | n/a | Continuous | n/a | n/a | n/a | Common | All Level 4 or higher monsters on the field cannot attack. |
| SD4-EN029 |
Tornado Wall
| Trap | n/a | Continuous | n/a | n/a | n/a | Common | "This card can only be activated when "Umi" is active on the field. As long as "Umi" remains face-up on the field, any damage from attacking monsters to your Life Points becomes 0. When "Umi" is removed from the field, this card is also destroyed." |
| SD4-EN030 |
Torrential Tribute
| Trap | n/a | | n/a | n/a | n/a | Common | "You can only activate this card when a monster is Normal Summoned, Flip Summoned or Special Summoned. Destroy all monsters on the field." |
| SD4-EN031 |
Spell Shield Type-8
| Trap | n/a | Counter | n/a | n/a | n/a | Common | "Select and activate 1 of the following effects: Negate the activation and the effect of a Spell Card that targets 1 monster on the field and destroy the Spell Card.Send 1 Spell Card from your hand to the Graveyard to negate the activation and the effect of a Spell Card and destroy it." |
| SD4-EN032 |
Xing Zhen Hu
| Trap | n/a | Continuous | n/a | n/a | n/a | Common | "Select 2 Set Spell or Trap Cards on the field and activate this card. As long as this card remains on the field, the selected Spell or Trap Cards cannot be activated." |