Venomous Coiler

Reward of the achievement Assault the Vault: earn ten achievements in the Vaults of Atal'Utek, the underground temple inside the mountain of The Coiled Isle. They cover the Vaults' public events (every Temple Patrol, Temple Strike and Temple Incursion once, all three Ancient Foes, and four small feats during particular events), the twelve Funerary Inscriptions, and every talent of the Altar of Corrosion. The Ancient Foes take turns week by week and the last altar talent comes at Renown 14 with Zul'jarra's Forces, so from nothing it takes about a month.

Guides Wowhead: The Vaults of Atal'Utek Patch 12.1 Zone Guide - Activities, Rewards, and Player Power · Method: Assault the Vault Meta Achievement - Venomous Coiler Mount Guide

• The Coiled Isle opened: The Curse of Ula'tek campaign, chapter 1 and chapter 2 as far as What Lies Beyond the Fog, which leads to the isle and the Vaults · about 3 h
• The Vaults' introduction: Into the Vaults of Atal'Utek from Warleader Abdumati or Mok'sa the Stone and its follow-ups (A Toxic Tour, which opens the Temple Assault events), then One Coin Too Many and The Altar of Corrosion from Er'inye, which open the altar. Done once, it opens the events for the whole warband · about 1 h
• Renown 14 with Zul'jarra's Forces: 35,000 reputation at 2,500 a level, counted for the whole account. Renown 8 and Renown 14 each give one point of Spirit Corrosion, and the altar's last talent cannot be had without both. Reputation comes from the isle's campaign and side quests, its 22 treasures (50 each), 10 lore objects (250 each) and 12 rares (50 each, once), world quests, Curse Surges, the Vaults' daily quests (50 each) and weekly quests of 1,000 each · about 17 h over 4 weeks
• Fully Corroded, the rest of it: 14 points of Spirit Corrosion bought from Er'inye with Corrosive Coins at a rising price (1,000 for the first, 20,000 for the last, 97,500 in all), and four more for the relics Lost Med'jai Amulet, Feather of Tok'jara, Mummified Lynx's Paw and Eye of Szarith, each opened with a key item from the events (Dispelling Charm, Spirit Loupe, Corroded Key, Excising Knife) and handed to Er'inye. Coins come from enemies, treasures, daily quests and the events: 20 for a patrol, 75 for a strike, 175 for an incursion, 200 for an Ancient Foe, and every 5 points spent raise what is found, up to +225% · about 20 h
• Oppose the Foes: defeat the three Ancient Foes, Congealed Malice, Susarikk and Khu'tulak. One of them is up each week; it wakes when a Temple Incursion succeeds and has to be beaten within 10 minutes · about 1.5 h over 3 weeks
• Roll the Patrol, Spike the Strike, A Lone Wanderer and Soft Underbelly: all 12 kinds of Temple Patrol and all 6 Temple Strikes, each set changing twice a week; during the strike Purifying Earth and Sky, take the Spiritwing form at the sky shrine and fly into one of the large wandering soul globes; during the strike The Underbelly, kill the Champion of the Scale, the Priest of the First Rattle and the Guardian of the Sacrifice, and at any time Szarith the Fanged and Vserix the Sneaky, who are in the Underbelly whether or not the strike is on · about 5 h over 2 weeks
• Submerge the Incursion, Ritual Behavior and Dance While Everyone Watches: the three Temple Incursions (Summoning Ritual, Cache of the Three, Supplies Must Flow), which start 15 minutes after the last one once the current strike is done and run for 10 minutes; in Summoning Ritual, bring one Petrified Egg, one Venomous Ooze and one Spirit Urn to the cauldron; in Cache of the Three, /dance beside each of the three stones (Shackles, Poison, Many Faces) · about 3 h
• The Honored Dead: read the 12 Funerary Inscriptions on the walls of the Vaults · about 1 h

In all: about 51.5 h of play, spread over 4 weeks, starting from nothing.

/way is for the TomTom addon. Travel times are estimates: flying at 55 yards a second in a straight line and 30 seconds for a portal. A star marks a portal that needs a quest or other unlock done first.

A project of several weeks, not a trip: the mount is granted when the tenth achievement completes. Added in patch 12.1.0 (11 August 2026); achievement 63630, with account-wide progress (Wowhead).

The ten, with Wowhead's ids:

• Roll the Patrol (63598)
• Submerge the Incursion (63599)
• A Lone Wanderer (62649)
• Ritual Behavior (62600)
• The Honored Dead (63610)
• Spike the Strike (63600)
• Oppose the Foes (63601)
• Dance While Everyone Watches (62604)
• Soft Underbelly (62601), account-wide since a hotfix of 9 September 2026 (wiki)
• Fully Corroded (63636)

The days of the requirements overlap; what sets the pace is the renown and the three weeks of Ancient Foes.

Spirit Corrosion: Wowhead's guide (2026) speaks of 15 points from coins, 2 from renown and 4 from relics, 21 in all, and of 20 talents to unlock, but its own price table has 14 purchases. A 2026 comment says a 17,500-coin step was dropped, and it and two other 2026 comments all describe being left one short until Renown 14. So 14 + 4 + 2 = 20 is taken as the current rule, and Renown 14 as required. Points are shared by the warband, but each character spends its own (Wowhead's guide); whether the achievement asks for one character to hold all 20 was not found. One of those commenters advises spending coins on points at once, for the growing bonus.

Relic keys by Wowhead's guide (Method, written before the patch, names only the events in general):

• Dispelling Charm from High Priest Jin'tal
• Spirit Loupe from an Ancient Foe
• Corroded Key from a Temple Strike
• Excising Knife from a Temple Incursion

Where sources disagree:

• the wiki's page for the Vaults lists eleven patrols, the achievement and both guides twelve
• a Wowhead comment says three patrol kinds are up at a time; Wowhead's guide says five kinds, with three patrols active every 10 minutes
• Wowhead's guide says three named elites are present in each Underbelly strike, and the commenter warns that Soft Underbelly's progress is partly reset when the strike ends with one of the three untagged

Wowhead's guide calls incursions and Ancient Foes group activities and says an incursion takes at least a party to finish in time. That is its judgement of the pace: no step, as described, needs several players by its mechanics, so no player count is set. A raid group can also finish an event too fast: the sky shrine switches off when the Earth and Sky bar fills, and the ritual closes when its 21 ingredients are in (comment).

Flying is off inside the Vaults; each tunnel gives a speed boost to ground mounts, and Spiritwing Gusts carry players about inside (Wowhead's guide).

The gates on The Coiled Isle's map (Wowhead's guide, wiki); which is nearest to the Amani Foothold was not checked:

• Gate of the Western Fang 31.8, 64.9
• Gate of the Serpent's Eye 43.4, 44.2
• Gate of the Eastern Fang 45.4, 64.9

The place given above is the Altar of Corrosion at the Amani Foothold on the Vaults' own map (Method: 51.2, 62.6; Er'inye at 51.08, 62.80; a waypoint 47.23, 60.97 beside its pictures of Warleader Abdumati). Method's guide for the mount was written two days before the patch and gives the Western Fang gate as a point on the Vaults' map (31.10, 64.94), which looks like the isle's coordinate.

The achievement Pro Poison Patroller (250 patrols) gives another mount and is not part of this one. Wowhead's page for the item has no comments yet; the wiki has no page for the Altar of Corrosion.

Confidence in this entry: medium. Looked up in 2026.

Sources

• Wowhead: venomous coiler
• Wowhead: assault the vault
• Wowhead: vaults of atalutek patch 12 1 zone activities rewards player power
• Wiki: Venomous Coiler
• Wiki: Assault the Vault
• Wiki: Vaults of Atal'Utek
• Wiki: Soft Underbelly
• Wiki: Roll the Patrol
• Wiki: Oppose the Foes
• Wiki: Fully Corroded
• Method: assault the vault meta achievement venomous coiler mount guide
• Method: vaults of atal utek wow midnight world activity overview
• Method: where to find all of the discoveries for the altar of corrosion in wow midnight
• Method: zuljarras forces reputation guide for wow midnight