Custodi Lich
The monarch mechanic manufactures volatility on purpose: the crown moves whenever someone lands combat damage, and every deck at the table wants it. This card weaponizes that churn. The entry trigger crowns you on arrival, but the load-bearing ability is the second one: it fires on any moment you become the monarch, not just this creature's own trigger, and each of those moments forces a target player to sacrifice a creature of their choice. Every reclamation of the crown becomes an edict, provided the Lich is still on the battlefield to see it happen. That proviso is the whole tension. The 4/2 body is a deliberate fault line: it dies to almost anything, and the instant it leaves the battlefield the sacrifice engine goes with it, so defending the crown and defending the creature become the same problem. Keep it alive and every retaken throne strips a creature from a chosen player; unlike a one-shot Diabolic Edict, the effect recurs for as long as the crown keeps changing hands and the Lich keeps standing. As an edict it reaches hexproof and protection threats that targeted removal cannot touch. The design fuses two black staples (the choose-a-creature sacrifice and a card-advantage engine you have to protect) into one fragile body that profits from exactly the tug-of-war the monarch rule was built to create, and punishes you the moment you stop guarding it.
