Supreme Being, Ainz

+2: Summon black 1/1 skeleton tokens with defender equal to half the number of creatures in your graveyard rounded up.
-4: All instant and sorcery spells in your graveyard have flashback until the end of this turn. Their flashback cost is equal to their mana cost.
-8: All creatures in your graveyard have unearth until the end of this turn. Their unearth cost is equal to their mana cost.