Yugioh Single
Poseidon Wave (SDRE-EN039) - Structure Deck: Realm of the Sea Emperor 1st Edition
$0.50
null / Normal Trap
Trap
0
When an opponent's monster declares an attack: Target the attacking monster; negate that target's attack, and if you control any face-up Fish, Sea Serpent, or Aqua-Type monsters, inflict 800 damage to your opponent for each of those monsters.