Scorned Graveraiser

At the beginning of your upkeep, create a 2/2 black Zombie creature token.
If Scorned Graveraiser is sacrificed, put another target creature card from your graveyard onto the battlefield under your control tapped. That creature is a black Zombie in addition to its other colours and types.
Those who offer their souls are met with unbreakable servitude for the rest of their cursed rebirths.