Abyss-scale of the Mizuchi
Ⓒ Equip only to a "Mermail" monster.
① A monster equipped with this card gains 800 ATK.
② If a Spell Effect that was activated on your opponent's side of the field resolves, negate that effect, then send this card to the GY.
The effect that negates effects does not start a chain. When the opponent activates a Spell Card, at the time that effect will resolve, the effect of this card is applied immediately.