Rakka Mar + Thornbite Staff + Pitiless Plunderer + Carrion Feeder

Rakka Mar
Thornbite Staff
Pitiless Plunderer
Carrion Feeder

Requires
Rakka Mar must be on the battlefield. Thornbite Staff must be on the battlefield. Pitiless Plunderer must be on the battlefield. Carrion Feeder must be on the battlefield. Thornbite Staff attached to Rakka Mar. Mana needed:
Steps
  1. Activate Rakka Mar by paying and tapping it, creating a 3/1 Elemental creature token with haste.
  2. Activate Carrion Feeder by sacrificing the Elemental.
  3. When the Elemental dies, Rakka Mar and Pitiless Plunderer trigger.
  4. Resolve the Rakka Mar trigger, untapping it.
  5. Resolve the Pitiless Plunderer trigger, creating a Treasure artifact token.
  6. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  7. Activate a Treasure by tapping and sacrificing it, adding .
  8. Repeat.
Results
Infinite +1/+1 counters on Carrion Feeder. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

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