Solemnity, Luminous Broodmoth, and Catalyst Elemental

Prerequisites

• Solemnity on the battlefield
• Luminous Broodmoth on the battlefield
• Catalyst Elemental on the battlefield

Steps

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

Results

• Infinite creature LTB
• Infinite creature ETB
• Infinite creature sacrifice triggers
• Infinite death triggers
• Infinite red mana