White Aura Dolphin

1 Tuner + 1+ non-Tuner monsters Once per turn: You can target 1 face-up monster your opponent controls; its ATK becomes half its original ATK until the end of this turn. If this card in your possession is destroyed by an opponent's card and sent to your GY: You can banish 1 other WATER monster from your GY; Special Summon this card as a Tuner.