Solemnity, Luminous Broodmoth, and Extruder

Prerequisites

• Solemnity on the battlefield
• Luminous Broodmoth on the battlefield
• Extruder on the battlefield

Steps

1. Activate Extruder by sacrificing it
2. When Extruder dies, Luminous Broodmoth triggers, returning Extruder from your graveyard to the battlefield without a flying counter on it due to Solemnity
3. Resolve the Extruder ability
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite +1/+1 counters on creatures you control