Supreme King Dragon Dark Rebellion

2 Level 4 DARK Pendulum Monsters Once per turn, before damage calculation, if this card battles an opponent's monster: You can detach 1 material from this card; until the end of this turn, change the ATK of that face-up opponent's monster to 0, and if you do, this card gains ATK equal to the original ATK of that opponent's monster. During the Battle Phase (Quick Effect): You can return this card to the Extra Deck; Special Summon up to 2 face-up "Supreme King Dragon" and/or "Supreme King Gate" Pendulum Monsters from your Extra Deck in Defense Position.

Dragon DARK XYZ Monster 4 xyz