Activate Goblin Bombardment by sacrificing Cult Conscript.
When Cult Conscript dies, Pitiless Plunderer and Fumulus trigger, creating a creature token and a Treasure token.
Resolve the Goblin Bombardment ability.
Activate Goblin Bombardment by sacrificing the creature token.
When the creature token dies, Pitiless Plunderer triggers, creating a Treasure token.
Resolve the Goblin Bombardment ability.
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 uses Goblin Bombardment as the ultimate output, letting you endlessly sacrifice creatures to chip away at your opponents' life totals. The engine is fueled by Pitiless Plunderer, which generates a Treasure token every time a creature bites the dust, providing the exact mana needed to bring back Cult Conscript from the graveyard. Meanwhile, Fumulus, the Infestation cleverly turns every non-token creature you sacrifice into a disposable Insect token, satisfying Cult Conscript's condition that a non-Skeleton creature must die each turn while keeping your ammunition fully stocked.