Doomsday + Thassa's Oracle

Doomsday
Thassa's Oracle

Requires
Doomsday and Thassa's Oracle in hand. Your life total is at least 2. You have at least three devotion to blue. uubbb available.
Steps
  1. Cast Doomsday by paying bbb, searching your library and graveyard for any five other cards, exiling all other cards from your graveyard and library, and then placing the remaining cards on top of your library and losing half your life, rounded up
  2. Cast Thassa's Oracle by paying uu
  3. Thassa's Oracle enters the battlefield, winning the game
Results
Win the game.