How can you create a combo with Underworld Breach, Glimpse the Unthinkable, Lotus Petal?
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[START OF COMBO]This combo can be formed with Underworld Breach, Glimpse the Unthinkable, Lotus Petal

Color identity: UBR
Mana cost: {U/B}
Steps:
  1. Activate Lotus Petal by tapping and sacrificing it, adding {U/B}.
  2. Cast Glimpse the Unthinkable from your graveyard for its escape cost by paying {U}{B} and exiling three other cards from your graveyard, causing you to mill ten cards.
  3. Cast Lotus Petal from your graveyard for its escape cost by paying {0} and exiling three other cards from your graveyard.
  4. Activate Lotus Petal by tapping and sacrificing it, adding {U/B}.
  5. Repeat from step 3 one additional time.
  6. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite self-mill
  - Near-infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Underworld Breach must be on the battlefield
  - Glimpse the Unthinkable must be in the graveyard
  - Lotus Petal must be on the battlefield
  - You have at least three additional cards in your graveyard.
[END OF COMBO PREREQUISITES]
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