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Sludgefist, Healer Guide

Updated 1 year, 4 months ago for patch 9.0.5 by Preston. View the change log.

Sludgefist Dungeon Journal ModelThis page covers a healer-focused strategy for Sludgefist in Castle Nathria in Shadowlands. While it's tailored for healers, other roles may also find the information useful. If you have any suggestions or feedback, you can leave a comment below or tweet @PrestonDvorak.

This guide has been updated and maintained based on my own experiences with the encounter, combat log information, and Dungeon Journal information. I'll continue to update it as-needed.

General Mechanics and Abilities

Normal and Heroic

  • The tanks will be dealing with Giant Fists, forcing both tanks to be stacked on each other and taking damage at the same time.
  • When affected by Chain Link, stay within 12-yards of the player you're linked to for the duration of the debuff to avoid the fatal damage from Shattering Chain.
  • On Heroic, stack with the player affected by Chain Slam to split the damage taken.
  • At 100% Rage, a tank will be targeted by Hateful Gaze and moving so there is a pillar between them and Sludgefist.
    • Avoid the path between Sludgefist and the targeted tank to avoid the fatal damage from Heedless Charge.
    • If a pillar is hit, a stack of Crumbling Foundation is applied to all players, dealing stacking light damage over time for the rest of the encounter.
    • If a wall is hit, Collapsing Foundation deals heavy damage to all players for the rest of the encounter.
    • Upon hitting a pillar or wall, Destructive Impact deals moderate damage to all players and stuns Sludgefist, increasing damage taken for 12-seconds.
  • Stay at least 20-yards away to avoid Destructive Stomp.
    • The tanks will be dealing with positioning so this doesn't destroy any pillars.
  • Avoid the impact locations of Falling Rubble and the resulting Stonequakes.
  • Deals moderate damage to all players and knocks them back with Colossal Roar.
  • At 30% health, gains Gruesome Rage, increasing damage dealt and attack speed.

Mythic Differences

  • Destructive Impact now triggers Fractured Boulder.
    • The impact location of Fractured Boulder must be soaked by at least one player, multiple players will split the damage taken.
    • Subsequent impact locations of Fractured Debris must also be soaked.
    • Soaking an impact applies Crushed, making subsequent soaks likely fatal while the debuff is active.
    • If any impact isn't soaked, Fractured Impact deals heavy damage to all players.
  • At least four players must be hit by Chain Slam to prevent Sludgefist from gaining Vengeful Rage, greatly increasing damage dealt and attack speed.
    • Players hit take light damage over time from Chain Bleed.
  • During Seismic Shift, stay at least 4-yards away from other players.


Healing Notes

Quick Notes, All Difficulties

The notes below mostly pertain to progression difficulty, meaning if you out-gear the difficulty you're on or use extra healers they may not apply.

Debuffs to Track


  • (Heroic) Chain Slam causes players to need additional healing.


  • (Mythic) Chain Bleed causes players to need additional healing.

Useful Addons

Below are the DBM settings I'll be using for Sludgefist in Castle Nathria. You can set them up however you'd like, but these ones should work well as a starting point. Some settings may be Mythic only.

Healer DBM Settings for Sludgefist Thumbnail
Healer DBM Settings for Sludgefist

Comment on Sludgefist, Healer Guide

Changelog - View the last ten changes. - +

January 26, 2021 - 3:49 pm (Stone Legion Generals) - Removed the note about the dispeller receiving Heart Hemorrhage on Mythic difficulty, this was removed in a patch.

January 11, 2021 - 6:07 pm (Sire Denathrius) - Added DBM settings.

January 11, 2021 - 5:59 pm (Stone Legion Generals) - Added DBM settings.

January 11, 2021 - 5:18 pm (Sludgefist) - Added DBM settings.

January 11, 2021 - 3:50 pm (The Council of Blood) - Added DBM settings.

January 05, 2021 - 1:47 am (Stone Legion Generals) - Changed mentions of Wicked Blade to Wicked Mark and updated its Spell ID - this is the actual spell players are targeted by.

January 05, 2021 - 1:41 am (Sun King's Salvation) - Changed Vulgar Brand to be noted as Magic instead of Curse. Removed Soul Infusion as a debuff to track as it doesn't actually apply a debuff.

January 02, 2021 - 10:25 pm (Stone Legion Generals) - Updated major/minor cooldown notes.

December 22, 2020 - 2:52 am (Huntsman Altimor) - Added Huntsman's Mark as the debuff targeting players before Sinseeker.

December 19, 2020 - 6:11 pm (Sludgefist) - Updated information for Hateful Gaze being a tank-only mechanic.