Heroic Ula'tek Nerfs and Raid Bug Fixes - Patch 12.1 Hotfixes

Blizzard has posted hotfixes for today which includes Heroic Ula'tek nerfs, and many raid bug fixes for Vashnik and the Coiled Altar.

Here you'll find a list of hotfixes that address various issues related to World of Warcraft: Midnight, Mists of Pandaria Classic, Season of Discovery, Burning Crusade Classic, WoW Classic Era, and Hardcore. Some of the hotfixes below take effect the moment they were implemented, while others may require scheduled realm restarts to go into effect. Please keep in mind that some issues cannot be addressed without a client-side patch update. This list will be updated as additional hotfixes are applied.

Hotfixes

August 20, 2026

Classes

Demon Hunter

Havoc

Aldrachi Reaver: Fixed an issue where Evasive Action was not granting an extra cast of Vengeful Retreat.

Druid

Restoration

Fixed an issue where the tooltip for Tranquility incorrectly described how long it extended heal over time effects.
Fixed an issue where Overgrowth was applying healing over time effects to the incorrect target when used in tandem with Soul of the Forest.

Hunter

Marksmanship

Corrected an issue where Hunters could benefit from the Precise Shots effect twice by casting Arcane Shot or Multi-Shot as Rapid Fire finishes channeling while talented into Unload.
Corrected an issue where the AoE damage from Explosive Shot was not properly reduced by damage taken reduction effects.

Priest

Holy

Fixed an issue where casting Benediction and queuing a Holy Word would consume the proc.

Shaman

Elemental

Resolved an issue causing Master of the Elements to not increase the damage of Earthquake.

Warlock

Hellcaller: Fixed an issue where Blackened Soul could trigger from Unstable Affliction periodic damage.

Affliction

Fixed an issue where Malefic Grasp was not affected by Withering Bolt.
Fixed an issue where Withering Bolt did not account for Wither when increasing Shadowbolt Volley damage.
Fixed an issue where Wither would not count toward Darkglare Eye Beam damage increase.
Fixed an issue where the Unstable Affliction granted by Venomous Abyss 4-piece set bonus would not grant a stack of Wither.
Delves
Fixed an issue where if Azta'rec killed a player it would display that Zek'vir has burrowed away and did not drop loot.
Dungeons and Raids
Ruby Life Pools
Thunderhead and Flamegullet
Fixed an issue where certain abilities could cause their breath spells to cancel unexpectedly.
Temple of Sethraliss
Avatar of Sethraliss
Fixed an issue where the progress bar could reach 100% when the Avatar reached 99% health.
The Venomous Abyss
Resolved an issue where players could fall through the world in The Serpent Warren.
Vashnik the Malignant
Fixed an issue causing Stygian Burst to inflict damage in a larger area than intended.
Shrouded Venom now has significant health and shields.
Fixed an issue causing players to get hit multiple times from the same wave in a short period of time.
Fixed a rare issue where players using Harpoon on a Venom while inside the Malignant Cavity would cause them to fall through the playspace.
The Coiled Altar
Fixed an issue where the encounter would rarely fail to properly transition to Phase 3 at the end of the intermission.
Ula’tek
Blight Vein damage reduced on Heroic difficulty.
Grasping Fangs now targets three players per side on Heroic difficulty, no matter the instance group size.
Volatile Purge's area of effect now scales with raid size in Normal and Heroic difficulties. The effect radius is largest in a 10-player raid and gradually decreases as raid size increases, reaching its smallest size in a 30-player raid.
Resolved an issue causing the damage of Spectral Coils to unintentionally scale on non-Mythic difficulties.
Spectral Coils now requires 40% of the raid to reduce its damage to a minimum value.
Spectral Coils adjusted on Heroic difficulty so it has more consistent timing.
Corrected an issue where the Blight Vein debuff did not properly inflict its damage based on the number of stacks applied, on Heroic and Mythic difficulties.
Corrected an issue where Hunters’ Stampede pets from the Pack Leader hero talents would not properly damage the Heart of Ula'tek during the encounter.

Items

Companion Command Crystal is now bind-on-pickup.
Omnium Folio
Fixed an issue with a previous change to the Omnium Folio's Rune of Unleashed Fire that resulted in pulling enemies you were not in combat with.
Prey
Decreased the damage and slow effect of Toxic Snare.

Quests

"The Venomous Abyss" campaign quest should now complete for players who were dead at the end of the last encounter.
Fixed an issue that reduced player-characters' turn speed after starting the world quest "Swift of Foot".
Treasures
Fixed an issue where the Unguarded Chest would spawn without Farthik the Plunderer.