Omnious, Cosmic Protector

+1: Create a 0/1 Demigod token with Defender and "When this token enters the battlefield, gain 1 life" Destroyed tokens return during your upkeep
0: Gain 3 mana of any type. If this mana is used to cast a spell with matching mana color, gain life equal to total mana cost of highest spell cast.
-3: Sacrifice a creature. Destroy target creature. Then retrieve a card from any graveyard to your hand. If Demigod token was sacrificed, gain 1 life