The Unrelenting Corpse General

When The Unrelenting Corpse General enters the battlefield, you create a 1/1 black zombie creature token with decay for each creature in a graveyard.

When you cast a black creature spell, you create a 2/2 black zombie creature token. When a creature leaves your graveyard, you create a 2/2 black zombie creature token with decay.

When The Unrelenting Corpse General dies, exile instead.