Suncleanser, Luminous Broodmoth, and Altar of Dementia

Prerequisites

• Suncleanser on the battlefield
• Luminous Broodmoth on the battlefield
• Altar of Dementia on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Suncleanser
2. When Suncleanser dies, Luminous Broodmoth triggers, returning Suncleanser from your graveyard to the battlefield with a flying counter on it
3. When Suncleanser enters the battlefield, it triggers, removing the flying counter from Suncleanser
4. Resolve the Altar of Dementia ability
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill