Sibuna, Anointed's Pharaoh

Each creature card in your graveyard has
embalm. The embalm cost is equal to its mana cost. (Exile a creature card from your graveyard and pay its mana cost: Create a token that's a copy of it, except it's white and become a Zombie in addition to its other types. Embalm only as a sorcery.)
Whenever you activate a mana ability or cast a creature in your graveyard, draw a card and you gain 2 life.