Zii'Griid Necromancer

{t}: Exile any number of Black Skull creature tokens. For each one exiled, deal 1 damage to a target creature or player
If this creature is removed from the battlefield in any way, summon a 1/1 Black Skull creature token
When Zii'Griid Necromancer enters the battlefield, return a target creature from your graveyard to the battlefield. This creature also has the Zombie sub-type as well as any other sub-types.