Combat Celebrant + Adarkar Valkyrie + Anger + Phyrexian Altar

Combat Celebrant
Adarkar Valkyrie
Anger
Phyrexian Altar

Requires
Combat Celebrant must be on the battlefield. Adarkar Valkyrie must be on the battlefield. Anger must be in the graveyard. Phyrexian Altar must be on the battlefield. You control a Mountain.
Steps
  1. Activate Adarkar Valkyrie by tapping it, targeting Combat Celebrant.
  2. Declare Combat Celebrant as an attacker, choosing to exert it as it attacks.
  3. Combat Celebrant triggers, untapping all other creatures you control and causing you to get an additional combat phase after this one.
  4. Activate Phyrexian Altar by sacrificing Combat Celebrant, adding one mana of any color.
  5. Combat Celebrant dies, triggering Adarkar Valkyrie, returning Combat Celebrant from your graveyard to the battlefield.
  6. Repeat.
Results
Infinite combat phases. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

Alesha, Who Smiles at Death
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