Solemnity, Luminous Broodmoth, and Death Cultist

Prerequisites

• Solemnity on the battlefield
• Luminous Broodmoth on the battlefield
• Death Cultist on the battlefield

Steps

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

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite lifeloss
• Infinite lifegain triggers
• Infinite lifegain