Abyss-scale of the Kraken

Equip Spell

Equip only to a "Mermail" monster. It gains 400 ATK. When a monster effect that was activated on your opponent's side of the field resolves, negate that effect, then send this card to the Graveyard.

Rulings – Yugipedia

Printings:

Abyss Rising: ABYR-EN056 (Common) - 2012-11-09

Prices:

Cardmarket: 0.17 €
TCGplayer: $ 0.25