At the beginning of the game, if Xorinth is in your command zone, you can't cast colored spells for the rest of the game.

{2}, Put two cards an opponent owns in exile into that player's graveyard: Create a 1/1 colorless Eldrazi Scion creature token with "Sacrifice this creature: Add {C}."

{T}, Sacrifice five Eldrazi Scions: Add {W}{U}{B}{R}{G}.