How can you create a combo with Triskelavus, Vigor, Mana Echoes?
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[START OF COMBO]This combo can be formed with Triskelavus, Vigor, Mana Echoes

Color identity: RG
Mana cost: {1}
Steps:
  1. Activate Triskelavus by paying {1} and removing a +1/+1 counter from it, creating a 1/1 Triskelavite artifact creature token.
  2. The Triskelavite enters the battlefield, triggering Mana Echoes, adding {C} for each Triskelavite you control.
  3. Activate a Triskelavite by sacrificing it, targeting Triskelavus.
  4. The damage that would be dealt to Triskelavus is prevented by Vigor, putting a +1/+1 counter on Triskelavus.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Triskelavus has at least one +1/+1 counter on it.
  - You control at least one Triskelavite.
[END OF COMBO PREREQUISITES]
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