Vol'jin, Darkspear Chief

Each creature card in your graveyard has scavenge. The scavenge cost is equal to its mana cost.
(Exile a creature card from your graveyard and pay its mana cost: Put a number of +1/+1 counters equal to that card’s power on target creature. Scavenge only as a sorcery.)

Sacrifice another creature: Regenerate Vol'jin.