Obi-Wan, Old Master

+2: Untap all creatures you control. Those creatures get +1/+1 until end of turn.
0: Until end of turn, Obi-Wan becomes a 5/5 Human Jedi creature with indestructible. Prevent all damaage that would be dealt to him this turn.
-10: Creatures you control get +2/+2 until end of turn. Tap all creatures your opponents control.