How can you create a combo with Agatha's Soul Cauldron, Triskelion, Strangleroot Geist?
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[START OF COMBO]This combo can be formed with Agatha's Soul Cauldron, Triskelion, Strangleroot Geist

Color identity: G
Mana cost: 
Steps:
  1. Activate Strangleroot Geist using Triskelion's ability by removing a +1/+1 counter from it.
  2. Repeat step 1 until Strangleroot Geist has no +1/+1 counters on it.
  3. Resolve all Strangleroot Geist abilities dealing 1 damage to Strangleroot Geist, and any remaining damage to any target(s).
  4. Strangleroot Geist dies as a state-based action due to having 0 toughness.
  5. Strangleroot Geist's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Agatha's Soul Cauldron must be on the battlefield
  - Triskelion must be exiled
  - Strangleroot Geist must be on the battlefield
  - Strangleroot Geist has at least one +1/+1 counter on it.
[END OF COMBO PREREQUISITES]
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