Number 96: Dark Mist

DARK
3 Level 2 monsters 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; halve the ATK of the opponent's monster, and if you do, this card gains that same amount of ATK.
100
1000

Fiend DARK XYZ Monster 2 xyz