Gluttonous G.O.A.T.

: Glutton for punishment: You have no hand size limit and draw an additional card during each players upkeep.
+1: Devour Darkness: Add 4 black mana to your mana pool
-12: Ingurgitate: Exile opponent's creatures, artifacts, land=2 who's toughness= your mana pool. Gluttonous G.O.A.T. can be your commander