Chief Emery Fleor, Scion

: Creatures that leave the battlefield are exiled. You may cast creature cards from exile using any color mana to cast them.
-2: Target opponent selects a creature from their graveyard at random, exiling it. Chief gains loyalty counters based on its mana cost.
-8: Exile all creatures from the battlefield and all graveyards. Gain X colorless mana where X is how many creatures are in exile.