How can you create a combo with Underworld Breach, Glimpse the Unthinkable, Lion's Eye Diamond?
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[START OF COMBO]This combo can be formed with Underworld Breach, Glimpse the Unthinkable, Lion's Eye Diamond

Color identity: UBR
Mana cost: {U/B}
Steps:
  1. Activate Lion's Eye Diamond by sacrificing it and discarding your hand, adding {U}{U}{U} or {B}{B}{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 Lion's Eye Diamond from your graveyard for its escape cost by paying {0} and exiling three other cards from your graveyard.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite self-mill
  - Near-infinite colored mana
  - 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
  - Lion's Eye Diamond must be on the battlefield
  - You have at least three additional cards between your graveyard and/or hand.
[END OF COMBO PREREQUISITES]
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