If Approach of the Second Sun was cast from your hand and you've cast another spell named Approach of the Second Sun this game, you win the game. Otherwise, put Approach of the Second Sun into its owner's library seventh from the top and you gain 7 life.
[+1]: Until your next turn, prevent all damage target permanent would deal. : Until end of turn, Gideon of the Trials becomes a 4/4 Human Soldier creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn. : 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."
As Gideon's Intervention enters the battlefield, choose a card name. Your opponents can't cast spells with the chosen name. Prevent all damage that would be dealt to you and permanents you control by sources with the chosen name.