Gideon of the Trials

+1: Until your next turn, prevent damage target permanent would deal
0: Until end of turn, Gideon of the Trials becomes a 4/4 Human Soldier creature with indestructible Prevent all damage that would be dealt to him.
0: You get an emblem with "As long as you control a Gideon planeswalker you can't lose the game and your opponents can't win the game."