Custodi Lich 
Creature — Zombie Cleric
When this creature enters, you become the monarch. Whenever you become the monarch, target player sacrifices a creature of their choice.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL