Saheeli, Radiant Creator, Combat Celebrant, Gonti's Aether Heart, and Decoction Module

Prerequisites

• Saheeli, Radiant Creator on the battlefield
• Combat Celebrant on the battlefield
• Gonti's Aether Heart on the battlefield
• Decoction Module on the battlefield
• You have at least

Steps

1. At the beginning of your combat phase, Saheeli triggers, causing you to pay to create a token copy of Combat Celebrant that is a 5/5 artifact creature with haste
2. When the Combat Celebrant token enters the battlefield, Gonti's Aether Heart and Decoction Module trigger, causing you to get
3. Declare the Combat Celebrant token as an attacker, choosing to exert it as it attacks
4. The token triggers, causing you to untap all other creatures you control and to get an additional combat phase after this one
5. Repeat each combat phase

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite combat phases
• Infinite creature tokens with haste
• Infinite untap of creatures you control
• Infinite mana creatures you control can produce