Luminous Broodmoth, Pitiless Plunderer, Altar of Dementia, and Bloodsoaked Champion

Prerequisites

• Luminous Broodmoth on the battlefield
• Pitiless Plunderer on the battlefield
• Altar of Dementia on the battlefield
• Bloodsoaked Champion on the battlefield
• You have attacked this turn

Steps

1. Activate Altar of Dementia by sacrificing Bloodsoaked Champion
2. When Bloodsoaked Champion dies, Luminous Broodmoth and Pitiless Plunderer trigger
3. Resolve the Luminous Broodmoth trigger, returning Bloodsoaked Champion from your graveyard to the battlefield with a flying counter on it
4. Resolve the Pitiless Plunderer trigger, creating a Treasure token
5. Activate Altar of Dementia by sacrificing Bloodsoaked Champion
6. When Bloodsoaked Champion dies, Pitiless Plunderer triggers, creating a Treasure token
7. Resolve the Altar of Dementia abilities from steps 1 and 5, causing target player to mill cards equal to twice Bloodsoaked Champion's power
8. Activate the Treasures by tapping and sacrificing them, adding
9. Activate Bloodsoaked Champion by paying , returning it from your graveyard to the battlefield
10. Repeat

Results

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