Thor, Fervent Warrior

+1: If Green or Red mana was paid, give creatures you control +2/+0 and haste until end of turn.
+1: If White or Blue mana was paid, Thor becomes a 5/3 creature with indestructible until the start of your next turn. Draw a card.
-6: Thor becomes a 6/6 creature with indestructible, vigilance, first-strike, flying, and trample. Creatures you control get +2/+1 until end of turn.