Grim Reaper's Scythe (MSC-658) - Commander: Marvel Super Heroes Foil

Whenever one or more creature cards leave your graveyard, create a 2/2 black Zombie creature token.

3B, T, Sacrifice two creatures: Return target creature card from your graveyard to the battlefield with a finality counter on it. Activate only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.)