How can you create a combo with Feldon of the Third Path, Combat Celebrant, Determined Iteration?
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[START OF COMBO]This combo can be formed with Feldon of the Third Path, Combat Celebrant, Determined Iteration

Color identity: R
Mana cost: {2}{R}
Steps:
  1. Activate Feldon by paying {2}{R} and tapping it, creating a token copy of Combat Celebrant with haste.
  2. At the beginning of your combat phase, Determined Iteration triggers, creating a token copy of the Combat Celebrant token with haste.
  3. Declare a Combat Celebrant token as an attacker, choosing to exert it as it attacks.
  4. The token triggers, untapping all other creatures you control and causing you to get an additional combat phase after this one.
  5. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite combat phases
  - Infinite creature tokens with haste
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Feldon of the Third Path must be on the battlefield
  - Combat Celebrant must be in the graveyard
  - Determined Iteration must be on the battlefield
  - Feldon does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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