Diyonun, Shaper of Flesh

+1: The next creature spell you cast this turn has emerge. The emerge cost is equal to its mana cost. Add {C} to your mana pool.
-2: Sacrifice a creature. Add X colorless mana to your mana pool, where X is 1 plus that creature's converted mana cost.
: Sacrifice two nontoken creatures: return Diyonun from your graveyard to the battlefield.