Number 96: Dark Mist

[ Fiend / Xyz / Effect ] 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. ATK/ 100 DEF/ 1000