Sarkhan, Power Hungry

: When a creature an opponent controls dies put a +1/+1 on target creature you control.
+1: Creatures you control get +1/+1 and gain haste until end of turn. You may put a land card from your hand into play.
-3: Until end of turn Sarkhan, Power Hungry becomes a 7/7 dragon with flying, double strike and hexproof that's still a planeswalker.