Yes, Altar of Fangs was nerfed. Its tuning goes live with patch 12.1.5 on October 13, 2026 in the Americas, and Europe gets it after maintenance on October 14. Primal Serpent's Piercing Hiss deals 25% less damage, Living Venom has 25% less health and its Venom Burst deals 50% less damage, and several other trash packs lost 5-21% of their health.
Altar of Fangs changes in 12.1.5
| Enemy | Change |
| Primal Serpent | Piercing Hiss damage -25%, cooldown +10% |
| Living Venom | Health -25%, Venom Burst damage -50% |
| Ascendant Serpent | Health -21% |
| Ravenous Descendant | Health -9% |
| Twinfang Harrower | Health -6%, Paralyzing Shot periodic damage -20%, duration 14 sec (was 20) |
| Rattling Writhe | Health -6%, Rattle damage -25% |
| Bloodletter | Health -5% |
| Ritual Chieftain | Blood Sacrifice healing absorb -12% |
| Rav'i | Carrion Burst -10% |
| Zul'jan | Axegrinder -15% |
| High Evolutionist | Evolve has a clearer visual |
The 12.1.5 notes say Keystone Myth comes back alongside targeted tuning of outlier dungeons. Six of the eight Season 2 dungeons were changed. Den of Nalorakk and Kings' Rest are not on the tuning list.
Battleground Blitz RatingFast 8v8 Blitz rating without organizing a team.from 38 EURGet it doneWhat changed in Ruby Life Pools?
Ruby Life Pools got the second-largest set of changes. Defier Draghar lost 27% of its health. Earthbound's Imprint impact damage is down 21% and its periodic damage is down 13%. Primalist Cinderweaver's Living Bomb can now be dispelled, and dispelling it stops the explosion. Storm Warrior's Thunderous Stomp is down 18%. High Channeler Ryvati's Tempest Stormshield now absorbs 15% of max health (was 20%). The cooldown on Melidrussa's Infused Whelp Cold Claws is longer. On Kokia Blazehoof, Blazebound Firestorm health is down 12.5%, Inferno impact is down 18% and Inferno periodic damage is down 14%.
What changed in The Blinding Vale?
Sporeblight Belcher lost 11% of its health. Its Belch Sore deals 16% less damage and now fires 3 projectiles per tick (was 5). Spouting Floret, Radiant Spellsower's Light Bolt Volley, Lightspore Shot and Oozing Xylem each deal 16% less. Lightwarden Ruia's Lightfire is down 15% and Pulverizing Strikes is down 12%. On Ziekket, Lightspawn Lasher health is down 10% and the Vicious Regrowth buff is 20% (was 30%).
Which other dungeons were tuned?
- Voidscar Arena: Feral Saberon Savage Leap cooldown +25%; Chitigoth Insidious Aura channel 8 sec (was 10); Brutal Overseer's Brutal Slams add 8% per slam (was 10%); Atroxus Poison Splash -11% and Toxic Aura -20%; Charonus Condensed Mass -20%.
- Murder Row: Zaen Bladesorrow's Fire Bomb deals 33% less damage. A separate fix stops Murder in a Row from assigning a player's safe spot to a barrel they were not hiding behind.
- Temple of Sethraliss: Static Anomaly's Spark Step deals 25% less damage.
Does the nerf make Keystone Myth easier?
Partly. With these changes, the hardest keys on the outlier dungeons should be closer to the rest of the pool, and Keystone Myth asks for a 3600 rating in 12.1.5. Blizzard has not confirmed whether rating earned before October 13 awards the achievement automatically, so plan your push around timing keys after the update.
If you would rather run high keys with an experienced group than practice the new routes on your own, PewPewShop offers self-play runs with vetted human players. Mythic+ Specific Dungeon runs start from EUR 8, and Mythic+ Rating (Score) Boost starts from EUR 56.