Image of Corstilax
Gender Male
Race Nightborne construct (Mechanical)
Level 112 Elite
Resource Mana
Reaction Alliance Horde
Location Arcway
Status Killable

General Xakal
Advisor Vandros


Corstilax is a boss located in the Arcway.


Adventure Guide

This massive construct patrols the tunnels beneath Suramar, searching for anomalies and correcting them. He has detected one such anomaly - a breach in one of the conduits that carries the power of the Nightwell - and works to repair it. But living outsiders wandering the tunnels are also an anomaly; one that Corstilax is empowered to remedy.


Corstilax guards the Nightwell breach, attempting to limit players' exposure to Nightwell Energy. Players must free their allies from Quarantine and avoid direct damage from Suppression Protocol.

Damage Dealer Alert Damage Dealers

  • Nightwell Energy significantly increases haste but will cause Cleansing Force to stun you.

Healer Alert Healers

  • Suppression Protocol inflicts moderate group wide damage.

Tank Alert Tanks

  • Exterminate inflicts heavy damage and stuns players within 15 yards when Cleansing Force ends if they have Nightwell Energy.


  • Trade archaeology naarucrystal.png  Quarantine Important — Corstilax places a random player in Quarantine, stunning them for 20 sec. or until the Quarantine is shattered. This effect inflicts 102000 Arcane damage every second. Quarantine is shattered when a player channels on it for 1 sec. 
  • Ability socererking arcanewrath.png  Suppression Protocol — Corstilax channels at a player for 5 sec, firing a missile at their location every second. When the missile impacts it inflicts 243750 to 256250 Arcane damage to all players within 6 yards, increasing their Arcane damage taken by 15% for 15 sec. In addition, this effect inflicts 66543 to 69957 Arcane damage to all players. 
  • Spell yorsahj bloodboil purple.png  Energy Burst — The nearby conduit bursts, applying a stack of Nightwell Energy to all players and creating several pools of residual energy for 15 sec. Players that enter the pools gain a stack of Nightwell Energy. 
  • Spell mage runeofpower.png  Cleansing Force — Corstilax draws in all players, removing one stack of Nightwell Energy every 2 sec for 8 sec. When Cleansing Force ends, all players within 15 yards suffer 665437 to 699563 Arcane damage. This effect stuns the target for 12 sec if they still have stacks of Nightwell Energy. 
  • Spell mage overpowered.png  Nightwell Energy — Nightwell energy increases haste by 15%. This effect stacks. 
  • Spell mage arcaneorb nightborne.png  Destabilized Orb Heroic Difficulty — Corstilax summons an orb of unstable energy for 1 min. This effect inflicts 350000 Arcane damage to all nearby players every second. 


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Item Type
 [Cleansing Isotope] Holy artifact relic
 [Quarantine Catalyst] Frost artifact relic
 [Collar of Enclosure] Cloth helmet
 [Stabilized Energy Pendant] Necklace
 [Spaulders of Aberrant Inhibition] Leather shoulders
 [Cape of Rigid Order] Cloak
 [Decontaminated Chain Tunic] Mail chest
 [Detention Wristclamps] Plate bracers
 [Coagulated Nightwell Residue] Tank trinket


Patch changes

External links