Gideon, Champion of Justice (13) [Gatecrash]

+1: Put a loyalty counter on Gideon for each creature target opponent controls. 0: Until end of turn, Gideon becomes a Human Soldier creature with power and toughness each equal to the number of loyalty counters on him and gains indestructible. He's still a planeswalker. Prevent all damage that would be dealt to him this turn. −15: Exile all other permanents.