How can you create a combo with The Scarab God, Mirror-Mad Phantasm, Thassa's Oracle?
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[START OF COMBO]This combo can be formed with The Scarab God, Mirror-Mad Phantasm, Thassa's Oracle

Color identity: UB
Mana cost: {3}{U}{U}{B} plus an additional {2}{U}{B} available if Thassa's Oracle is not in hand, or an additional {U}{U} otherwise
Steps:
  1. Activate The Scarab God by paying {2}{U}{B}, exiling Mirror-Mad Phantasm and creating a copy of it, except it's a 4/4 black Zombie.
  2. Activate the Mirror-Mad Phantasm token by paying {1}{U}, shuffling it into your library, revealing all cards in your library and putting them into your graveyard.
  3. If Thassa's Oracle is not in your hand, activate The Scarab God by paying {2}{U}{B}, exiling Thassa's Oracle and creating a copy of it, except it's a 4/4 black Zombie.
  4. If Thassa's Oracle is in your hand, cast it by paying {U}{U}.
  5. Thassa's Oracle enters the battlefield, causing you to win the game.[END OF COMBO STEPS]

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

Other prerequisites:
  - The Scarab God must be on the battlefield
  - Mirror-Mad Phantasm must be in the graveyard
  - Thassa's Oracle must be in your hand or in the graveyard or in the library
  - You have a way to draw a card.
[END OF COMBO PREREQUISITES]
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