Number C73: Abyss Supra Splash (Super Rare)

3 Level 6 monsters If a monster you control battles an opponent's monster, during damage calculation (in either player's turn): You can detach 1 Xyz Material from this card once per battle, your battling monster gains ATK equal to the ATK of the opponent's monster it is battling, during that damage calculation only. If this card has "Number 73: Abyss Splash" as Xyz Material, it gains this effect. ● This card cannot be destroyed by card effects.