Adarkar Valkyrie + Anger + Combat Celebrant + Phyrexian Altar

RW identity

Commander legal

The 4 combo pieces

• Adarkar Valkyrie
• Anger
• Combat Celebrant
• Phyrexian Altar

What must be in place

You control a Mountain.

How to execute it

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.

What the combo produces

• Infinite combat phases
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers