How can you create a combo with Doomsday, Thassa's Oracle?
user
[START OF COMBO]This combo can be formed with Doomsday, Thassa's Oracle

Color identity: UB
Mana cost: {U}{U}{B}{B}{B}
Steps:
  1. Cast Doomsday by paying {B}{B}{B}, 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 {U}{U}.
  3. Thassa's Oracle enters the battlefield, winning the game.[END OF COMBO STEPS]

Result:
  - Win the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be in your hand
  - Your life total is at least 2.
  - You have at least three devotion to blue.
[END OF COMBO PREREQUISITES]
assistant