Ayara, Widow of the Realm // Ayara, Furnace Queen, Combat Celebrant, and Shilgengar, Sire of Famine

Prerequisites

• Ayara, Widow of the Realm // Ayara, Furnace Queen on the battlefield
• Combat Celebrant in the graveyard
• Shilgengar, Sire of Famine on the battlefield

Steps

1. At the beginning of your combat phase, Ayara triggers, returning Combat Celebrant from your graveyard to the battlefield and giving it haste
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 Shilgengar by sacrificing Combat Celebrant Repeat each combat phase

Results

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