When this card is activated: You can activate 1 "Umi" from your hand or Graveyard. While "Umi" is on the field, this card gains these effects.
● Once per turn: You can banish 1 WATER monster you control until the End Phase; this turn, face-up Spell/Trap Cards you control cannot be destroyed by your opponent's card effects (even if this card leaves the field).
● At the start of the Damage Step, if a WATER monster you control whose original Level is 5 or higher battles an opponent's monster: Destroy that opponent's monster.