How can you create a combo with Descent into Avernus, Clock of Omens, Lithoform Engine, Glacial Chasm?
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[START OF COMBO]This combo can be formed with Descent into Avernus, Clock of Omens, Lithoform Engine, Glacial Chasm

Color identity: R
Mana cost: {2}
Steps:
  1. At the beginning of your upkeep, Glacial Chasm and Descent into Avernus each trigger.
  2. Holding priority, activate Lithoform Engine's first ability by paying {2} and tapping it, copying Descent into Avernus' ability.
  3. Resolve the copy of Descent into Avernus' ability, putting two descent counters on it, then causing each player to create a number of Treasure tokens equal to the number of descent counters on it, and then deal that much damage to each opponent.
  4. Activate Clock of Omens by tapping two Treasures, untapping Lithoform Engine.
  5. Activate two Treasures by tapping and sacrificing them, adding {2}.
  6. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite colored mana for all players
  - Infinite damage
  - Infinite descent counters on Descent into Avernus
  - Infinite Treasure tokens for all players[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Descent into Avernus has at least two descent counters on it.
[END OF COMBO PREREQUISITES]
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