Combat Celebrant + Splinter Twin

R identity

Commander legal

The 2 combo pieces

• Combat Celebrant
• Splinter Twin

What must be in place

Splinter Twin attached to Combat Celebrant.
Combat Celebrant does not have summoning sickness.

How to execute it

1. Activate Combat Celebrant by tapping it, making a token copy of itself with haste.
2. Proceed to your combat step.
3. Declare the Combat Celebrant copy as an attacker, choosing to exert it as it attacks.
4. The Combat Celebrant copy triggers, untapping all other creatures you control and causing you to get an additional combat phase after this one.
5. Repeat.

What the combo produces

• Infinite combat phases
• Infinite creature tokens with haste
• Infinite ETB