Resourceful Measures
At 90%, 70%, and 40% health the Hoardmonger empowers a resource pile permanently.
Empower order: meat pile first (adds knockback to Ravenous Bellow), bone second (upgrades slam), mushroom last (more Rotten Mushrooms). Call which pile he is running to before each breakpoint.
Officer tip: Meat first is intentional — Hearty Bellow is healable; mushroom empowerment spawns more soaks.