Number C65: King Overfiend (SHSP-EN048) - Shadow Specters Unlimited

3 Level 3 DARK monsters Once per turn: You can detach 1 Xyz Material from this card, then target 1 face-up monster your opponent controls; that target loses 1000 ATK and DEF. If this card has "Number 65: Djinn Buster" as an Xyz Material, it gains this effect.