Activate Altar of Dementia by sacrificing Cult Conscript.
When Cult Conscript dies, Luminous Broodmoth and Pitiless Plunderer trigger.
Resolve the Luminous Broodmoth trigger, returning Cult Conscript from your graveyard to the battlefield with a flying counter on it.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Activate Altar of Dementia by sacrificing Cult Conscript.
When Cult Conscript dies, Pitiless Plunderer triggers, creating a Treasure token.
Resolve the Altar of Dementia abilities from steps 1 and 5, causing target player to mill cards equal to twice Cult Conscript's power.
Activate the Treasures by tapping and sacrificing them, adding 1.
Activate Cult Conscript by paying 1, returning it from your graveyard to the battlefield.
Repeat.
This ingenious loop transforms a humble skeleton into a relentless mill engine by leveraging Luminous Broodmoth and Pitiless Plunderer to turn every death into a recycling and financial opportunity. When you feed Cult Conscript to Altar of Dementia, Luminous Broodmoth catches it on the first go-around—returning it with a flying counter—while Pitiless Plunderer kicks in every single time a creature bites the dust to generate a crucial Treasure token. Because the Broodmoth only triggers on creatures *without* flying, the first resurrection grants it wings, meaning subsequent sacrifices rely on Cult Conscript's own recursive ability, fueled by the mana from those very same Treasures, to keep the infinite cycle grinding your opponent's library away.