Infernal Vessel, Luminous Broodmoth, and Ashnod's Altar

Prerequisites

• Infernal Vessel on the battlefield
• Luminous Broodmoth on the battlefield
• Ashnod's Altar on the battlefield

Steps

1. Activate Ashnod's Altar by sacrificing Infernal Vessel, adding
2. When Infernal Vessel dies, it triggers, returning itself from your graveyard to the battlefield as a Demon in addition to its other types
3. Activate Ashnod's Altar by sacrificing Infernal Vessel, adding
4. When Infernal Vessel dies, Luminous Broodmoth triggers, returning Infernal Vessel from your graveyard to the battlefield with a flying counter on it
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana