TheWoWDBThe Venomous Abyss
The Coiled Altar Guide
The Coiled Altar in The Venomous Abyss, quoted from the Adventure Guide. Database holds the raw abilities and the full loot table.
30-second TL;DR
Adventure Guide says
- A mutated Zul'jan unleashes his new power by Coalescing Venom within The Coiled Altar.
- He wields twin axes that Sever players and destroy Coalesced Venom.
- Stages named in the Adventure Guide: Stage One: Serpent's Bargain, Stage Two: Usurper's Reprisal, Spiteful Soulcoiler, Abandoned Soulcoiler, Intermission: The Claimed Vessel, Fragment of Malacrass, Stage Three: Coiled Union.
- Tanks: Sever inflicts a massive amount of damage, destroying Coalesced Venom.
- Healers: Fangs of the Coiled Altar and Defilement of the Coiled Altar inflicts massive damage and healing absorbs to all players.
- Damage dealers: Toxic Deluge creates Coalesced Venom around the arena.
Overview
Adventure Guide says
A mutated Zul'jan unleashes his new power by Coalescing Venom within The Coiled Altar. He wields twin axes that Sever players and destroy Coalesced Venom. Upon Zul'jan's defeat, Malacrass joins the fray. Malacrass haunts players with Dreadmarch, creating Manifestations of Dread as it resolves. His casts of Soul Sever hurt players and destroy any Manifestations of Dread in its blast. Upon defeat, Malacrass begins a ritual of Soulbinding to revive Zul'jan as his puppet, and claim what is rightfully his.
- Toxic Deluge creates Coalesced Venom around the arena.
- Freeing players possessed by Dreadmarch creates Manifestations of Dread that fixate on a random player.
- Eternal Nightfall inflicts deadly damage unless Veil of Twilight is broken.
- Fangs of the Coiled Altar and Defilement of the Coiled Altar inflicts massive damage and healing absorbs to all players.
- Coalesced Venom explode into a Venom Rupture when destroyed.
- Venomfang and Gloombomb inflict heavy damage.
- Sever inflicts a massive amount of damage, destroying Coalesced Venom.
- Soul Sever afflicts players hit with Gravebound and destroys Manifestations of Dread.
- Corrupted Toxin inflicts stacking moderate damage.
Encounter phases
Adventure Guide says
- Stage One: Serpent's Bargain
- Stage Two: Usurper's Reprisal
- Spiteful Soulcoiler
- Abandoned Soulcoiler
- Intermission: The Claimed Vessel
- Fragment of Malacrass Fragments of Malacrass attempt to reunite with their new host.
- Stage Three: Coiled Union
Tank mechanics
Adventure Guide says
- Sever inflicts a massive amount of damage, destroying Coalesced Venom.
- Soul Sever afflicts players hit with Gravebound and destroys Manifestations of Dread.
- Corrupted Toxin inflicts stacking moderate damage.
Healer mechanics
Adventure Guide says
- Fangs of the Coiled Altar and Defilement of the Coiled Altar inflicts massive damage and healing absorbs to all players.
- Coalesced Venom explode into a Venom Rupture when destroyed.
- Venomfang and Gloombomb inflict heavy damage.
DPS mechanics
Adventure Guide says
- Toxic Deluge creates Coalesced Venom around the arena.
- Freeing players possessed by Dreadmarch creates Manifestations of Dread that fixate on a random player.
- Eternal Nightfall inflicts deadly damage unless Veil of Twilight is broken.
Normal, Heroic, and Mythic
Adventure Guide says
Only sentences the Adventure Guide itself marks as a difficulty change. We do not invent extra Heroic or Mythic strategy.
- On Mythic difficulty, one Coalesced Venom mutates into a Virulent Cyst.
- On Mythic difficulty, some Coalesced Venom warp into Virulent Mutations.
- On Mythic difficulty, Guillotined is permanent.
- On Mythic difficulty, Axegrinders no longer despawn.
- On Mythic difficulty, Manifestations of Dread can only be seen by the target they are fixating.
- On Heroic difficulty, all players are afflicted with Gravebound.
- On Heroic difficulty, Gloombomb afflicts players hit with Gravebound.
- On Mythic difficulty, some Coalesced Venom warp into a Virulent Mutation.
- On Heroic difficulty, Grim Guillotine applies Guillotined.
Boss abilities
| Ability | Adventure Guide | Notes |
|---|---|---|
 Fangs of the Coiled Altar | ||
 Twinfang Toxin | ||
 Noxious Ground | ||
 Toxic Deluge | On Mythic difficulty, one Coalesced Venom mutates into a Virulent Cyst. On Mythic difficulty, some Coalesced Venom warp into Virulent Mutations. Toxic Deluge explodes any remaining Virulent Mutations in a deadly eruption when it is cast. | |
 Coalesced Venom | ||
 Virulent Mutation | ||
 Guillotine | ||
| Execution | ||
 Widow's Kiss | ||
 Widow's Touch | ||
| Guillotined | On Mythic difficulty, Guillotined is permanent. | |
 Sever | ||
 Venomfang | ||
 Axegrinder | On Mythic difficulty, Axegrinders no longer despawn. | |
 Dreadmarch | ||
 Soul Sever | ||
 Gravebound | ||
 Eternal Nightfall | ||
 Veil of Twilight | ||
 Spiritcackle | On Heroic difficulty, all players are afflicted with Gravebound. | |
 Gloombomb | On Heroic difficulty, Gloombomb afflicts players hit with Gravebound. | |
 Dread Bolt | ||
 Dreadful Presence | ||
 Soulbinding | ||
 Ghastly Regeneration | ||
 Deathguard | ||
 Soulbound | ||
 Defilement of the Coiled Altar | ||
 Grim Guillotine | On Heroic difficulty, Grim Guillotine applies Guillotined. | |
 Blighted Sever |
Loot
Every name is a TheWoWDB item page. Hover the row for the first-party tooltip.
Aman'muso, Warlord's Vengeance
Baleful Hexblade
Cackling Soultreads
Coiled Hex Legguards
Cuisses of the Uncoiled Union
Girdle of Toxic Regret
Grasps of the Eternal Shadow
Hex Lord's Dooming Idol
Maze-roa, Warlord's Fury
Reckless Spirit Breastplate
Sash of the Forlorn Vessel
Silken Voodoo Drape
Soulslither Spaulders
Zul'jin's Guillotine Technique
Hex Lord's GazeHex Lord's Visage
Pillar of the Coiled IsleMounts, toys, achievements, transmog
Only rows the journal loot table or an achievement title can prove for this encounter.
Mounts
Item sets and transmog
Achievements
Heroic: The Venomous Abyss · Mythic: Entombed Sentinels · Mythic: Nek'zali the Soulcoiler · Mythic: Sszorak · Mythic: The Coiled Altar · Mythic: The Lost Explorers · Mythic: The Twin Fangs · Mythic: The Venomous Abyss · Mythic: Ula'tek · Mythic: Vashnik the Malignant · The Venomous Abyss · The Venomous Abyss: Beasts of Ula'tek · The Venomous Abyss: Essence of Ula'tek · The Venomous Abyss: Ula'tek
Entrance and instance
The Venomous Abyss is a raid in the Adventure Guide. See the The Venomous Abyss database page for the raw journal, map, and loot grid. This guide does not invent coordinates or a walking path.
Related bosses
Player strategy
This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal.
Questions
What does the Adventure Guide say about The Coiled Altar?
A mutated Zul'jan unleashes his new power by Coalescing Venom within The Coiled Altar.
How many abilities does The Coiled Altar have?
The current datamine lists 30 named abilities on the The Coiled Altar encounter.
What does The Coiled Altar drop?
The Adventure Guide lists 17 drops. Each name links to its TheWoWDB item page. The full table also lives on the The Venomous Abyss database page.
Does The Coiled Altar change on Heroic or Mythic?
Yes. The Adventure Guide adds difficulty sentences on the abilities that change; those sentences are collected in the difficulty section. We do not invent additional Heroic or Mythic strategy.
Does The Coiled Altar drop a mount?
The journal loot table includes Primeval Skyfriend. Each links to its TheWoWDB mount page.
Where does this guide's text come from?
Quoted Adventure Guide sections come from TheWoWDB's retail datamine (client build 12.1.0.69587, ingested 2026-09-01). Player strategy such as positioning, assignments, and cooldown timings is omitted unless that sentence is already in the journal.
Source and build
This page quotes the Adventure Guide. It does not add player strategy such as positioning, assignments, stack or spread calls, or cooldown timings unless that sentence is already in the journal. Quoted sections come from TheWoWDB Adventure Guide datamine (client build 12.1.0.69587, ingested 2026-09-01). Ability names link to first-party spell pages. When a newer retail build is ingested, this page updates with it.