Sylvester, Massive Mage

+2: Look at the top 3 cards of your library, you may add one instant or sorcery from those cards to your hand and rest to the bottom of your library.
-1: Target creature gains double strike until end of turn
-6: You gain an emblem stating "Whenever you cast an instant or sorcery creatures you control gain +2,+0 until end of turn."