Solitary Sword of Poison

Yu-Gi-Oh Card: Solitary Sword of Poison
Available from these partners:
Solitary Sword of Poison
Type:Equip Spell
Text:Equip only to a monster you control. If the equipped monster battles an opponent's monster, the equipped monster's original ATK/DEF is doubled during damage calculation only. If you control a monster other than the equipped monster, send this card to the GY. You can only control 1 "Solitary Sword of Poison".
Printings: 2019 Gold Sarcophagus Mega Pack (MP19-EN123)
Cybernetic Horizon (CYHO-EN065)