Izinkuni

+3: +1/+1 to all green or black creatures. All white or blue creatures -1/-1.
+1: Pick a card from you opponents hand at random, and place it on the battlefield as a friendly creature. When this creature is killed, draw a card.
-6: Izinkuni becomes a 5/10 assassin with hexproof, vigilance and reach. When Izinkuni is exiled or killed, revert back to planeswalker form.