Gideon, Champion of Justice

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