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

Color identity: UB
Mana cost: {3}{U}{U}{B} plus an additional {2}{U}{B} available if Laboratory Maniac is not on the battlefield
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 Labratory Maniac is not on the battlefield, activate The Scarab God by paying {2}{U}{B}, exiling Laboratory Maniac and creating a copy of it, except it's a 4/4 black Zombie.
  4. Draw a card, 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
  - Laboratory Maniac must be on the battlefield or in the graveyard or in the library
  - You have a way to draw a card.
[END OF COMBO PREREQUISITES]
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