Combat Celebrant + Helm of the Host

R identity

Commander legal

The 2 combo pieces

What must be in place

Helm of the Host attached to Combat Celebrant.

How to execute it

  1. At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of Combat Celebrant with haste.
  2. Declare the token Combat Celebrant as an attacker choosing to exert it as it attacks.
  3. The Combat Celebrant copy triggers, untapping all other creature you control and causing you to get an additional combat phase after this one.
  4. Repeat.

What the combo produces