How can you create a combo with Scholar of the Lost Trove, Worldfire, Impact Tremors?
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[START OF COMBO]This combo can be formed with Scholar of the Lost Trove, Worldfire, Impact Tremors

Color identity: UR
Mana cost: {5}{U}{U}
Steps:
  1. Cast Scholar of the Lost Trove by paying {5}{U}{U}.
  2. Scholar of the Lost Trove enters the battlefield, triggering itself and Impact Tremors.
  3. Resolve the Scholar of the Lost Trove trigger, casting Worldfire from your graveyard without paying its mana cost.
  4. Resolve Worldfire, exiling all permanents, all cards in all hands and graveyards, setting each player's life total to one, and exiling Worldfire.
  5. Resolve the Impact Tremors trigger from step 2, dealing 1 damage to each opponent.
  6. Each opponent loses the game due to having zero life.[END OF COMBO STEPS]

Result:
  - Each opponent loses the game
  - Exile all cards in all hands and graveyards
  - Exile all permanents
  - Near-infinite lifeloss for all players[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Scholar of the Lost Trove must be in your hand
  - Worldfire must be in the graveyard
  - Impact Tremors must be on the battlefield
[END OF COMBO PREREQUISITES]
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