Soil Cycler

Whenever Soil Cycler enters or leaves your graveyard, sacrifice a creature.
Embalm {1}{w}, Return a creature card from a graveyard to the battlefield under your control ({1}{w}, Return a creature card from a graveyard to the battlefield under your control, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Avatar with no mana cost. Embalm only as a sorcery.)