Azathoth, deramer

When Azathoth, dreamer enter the battlefield choose one:
-Dormient: Search for X cards from your library or outside the game and put them into your hand.
You may play them without paying their mana cost.
If X is 10 or more you win the game.
-Awake: Exile X permanents,
restart the game with those permanents on the battlefield under your control,
then exile all cards named Azathoth, dreamer from the game.