Number C96: Dark Storm (UTR) (SHSP-EN046) [Shadow Specters]

4 Level 3 DARK monsters
<br>This card cannot be destroyed by battle, also all battle damage you take from battles involving this card is also inflicted to your opponent. If this card has "Number 96: Dark Mist" as an Xyz Material, it gains this effect.
Once per battle, during either player's turn, when an attack is declared involving this card and an opponent's monster: You can detach 1 Xyz Material from this card; the ATK of that opponent's monster becomes 0, and if it does, this card gains ATK equal to that monster's original ATK.