Feldon of the Third Path + Combat Celebrant + Determined Iteration

Prerequisites

• Feldon does not have summoning sickness.

Steps

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

Effects

• Infinite combat phases
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers