Oberon, Friend of Nature

+1: Add two +1/+1 counters to a creature you own. Add one of the following counters to a creature you own: First strike, Vigilance, Trample.
+2: The next instant/sorcery card you cast this turn has lifelink. You may activate this ability anytime you could cast an instant.
-4: Look at the top three cards of your deck, you may put a card with power 3 or greater onto the battlefield. Discard the rest.