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Fathom-Lord Karathress, Healer Guide

Updated 1 year, 9 months ago for patch 2.5.2 by Preston. View the change log.

Fathom-Lord Karathress Dungeon Journal ModelThis page covers a healer-focused strategy for Fathom-Lord Karathress in Serpentshrine Cavern in The Burning Crusade. 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

During this encounter, players will be fighting against Karathress and his Fathom-Guards.

  • Fathom-Lord Karathress
  • Fathom-Guard Caribdis
  • Fathom-Guard Sharkkis
    • During The Beast Within, Sharkkis and any summoned pets deal increased damage.
    • Deals light damage over time and drains mana from random players with Leeching Throw.
    • Deals light damage to swaths of player with Multi-Toss.
    • Deals light damage to random players with Hurl Trident.
    • Summons a Fathom Lurker or a Fathom Sporebat.
      • Fathom Lurker
        • The tanks will be dealing with the knock back from Knock Away.
        • Upon death, deals moderate damage to all players within 10-yards with Spore Explosion.
      • Fathom Sporebat
        • The tanks will be dealing with the knock back from Knock Away.
  • Fathom-Guard Tidalvess


Healing Notes

Quick Notes

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

Debuffs to Track


  • Tidal Surge incapacitates players, possibly causing the tanks to need additional healing.


Useful Addons

DBM Settings

Below are the DBM settings I'll be using for Fathom-Lord Karathress in Serpentshrine Cavern. You can set them up however you'd like, but these ones should work well as a starting point.

Healer DBM Settings for Fathom-Lord Karathress Thumbnail
Healer DBM Settings for Fathom-Lord Karathress

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