The Hoardmonger permanently unlocks a new ability at 90, 70, and 40 percent health in Mythic+, so the final phase runs extra mushrooms, Bonespike Slam, and Hearty Bellow all at once. Keys die to unsoaked Rotten Mushrooms, because a single Putrid Burst covers the entire group in stacking Toxic Spores.
At 90, 70, and 40 percent health the boss gathers from the nearest resource pile and unlocks Overflowing Supplies, Bonespike Slam, or Hearty Bellow. In Mythic+ every unlocked ability is permanent, so the empowerments stack up as the fight goes on.
Expect the fight to escalate at each threshold. Hold group cooldowns and lust for the final phase, when all three empowerments overlap.
At 100 energy the boss tosses rotten food for 7 seconds, growing Rotten Mushrooms around the arena. Each mushroom detonates in a Putrid Burst 12 seconds after it grows, hitting the whole group and applying Toxic Spores to everyone, and the Overflowing Supplies empowerment adds even more mushrooms.
Spread out and touch every mushroom before it detonates. Each soak applies one stack of Toxic Spores, so split the soaks across the group instead of letting one player absorb them all.
Soaking a mushroom applies a stacking Nature damage over time effect that ticks every 2 seconds for 12 seconds.
Healers cleanse it as a Poison, starting with whoever carries the most stacks. Soakers should cap themselves at two or three stacks and let teammates take the rest.
The boss slams the ground and deals massive Nature damage to every player caught in a frontal cone.
Watch the boss facing and sidestep the cone every time it starts. Only the tank should ever stand in front of the boss.
The bone-pile empowerment replaces Earthshatter Slam with a cone that also litters the ground with bone spikes for 45 seconds. Touching the spikes deals heavy ticking Physical damage and slows movement by 50 percent.
The tank baits this cone toward the edge of the room, so the spikes never choke the space the group needs for mushroom soaks.
The boss roars, hitting all players for heavy Physical damage plus an armor-ignoring damage over time effect for 10 seconds. The Hearty Bellow empowerment adds a knockback to the same roar.
Call a group healing cooldown for every Bellow. Once Hearty Bellow is unlocked, position away from bone spikes and mushrooms before the knockback lands.
Face the boss away from the group at all times, bait Bonespike Slam toward the walls, and soak spare mushrooms with mitigation up, since you are the most durable soaker.
Plan a healing cooldown for every Ravenous or Hearty Bellow, then work Poison dispels on Toxic Spores in descending stack order.
Sidestep every frontal cone and take your share of mushroom soaks even when it costs uptime, because the burst is far worse than the soak.
Before each Spoiled Supplies, note where bone spikes sit so you have a clean path to your mushroom.
Tyrannical: The sub-40 percent phase is a long overlap of all three empowerments. Hold lust or a major healing cooldown for it, and treat every unsoaked mushroom as lethal from the first cast.
Sources: Wowhead: Den of Nalorakk Dungeon Overview (Patch 12.1, updated 2026-08-11) · Warcraft Wiki: Den of Nalorakk · Icy Veins: Den of Nalorakk Dungeon Guide
