TheWoWDBThe Arcway
Corstilax Guide
Corstilax in The Arcway, quoted from the Adventure Guide. Database holds the raw abilities and the full loot table.
30-second TL;DR
Adventure Guide says
- 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.
- Healers: Suppression Protocol inflicts moderate group wide damage.
- Damage dealers: Nightwell Energy significantly increases haste but will cause Cleansing Force to stun you.
Overview
Adventure Guide says
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.
- Nightwell Energy significantly increases haste but will cause Cleansing Force to stun you.
- Suppression Protocol inflicts moderate group wide damage.
Healer mechanics
Adventure Guide says
- Suppression Protocol inflicts moderate group wide damage.
DPS mechanics
Adventure Guide says
- Nightwell Energy significantly increases haste but will cause Cleansing Force to stun you.
Boss abilities
| Ability | Adventure Guide | Notes |
|---|---|---|
 Quarantine | ||
 Suppression Protocol | ||
 Energy Burst | ||
 Cleansing Force | ||
 Nightwell Energy | ||
 Destabilized Orb |
Loot
Every name is a TheWoWDB item page. Hover the row for the first-party tooltip.
Mounts, toys, achievements, transmog
Only rows the journal loot table or an achievement title can prove for this encounter.
Item sets and transmog
Fortitude of the Nightborne · Jacin's Ruse · Journey Through Time · March of the Legion · Nightwell Arcanum · Traitor's Oath
Achievements
Heroic: The Arcway · Mythic: The Arcway · Mythic: The Arcway · The Arcway
Entrance and instance
The Arcway is a dungeon in the Adventure Guide. See the The Arcway 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 Corstilax?
Corstilax guards the Nightwell breach, attempting to limit players' exposure to Nightwell Energy.
How many abilities does Corstilax have?
The current datamine lists 6 named abilities on the Corstilax encounter.
What does Corstilax drop?
The Adventure Guide lists 9 drops. Each name links to its TheWoWDB item page. The full table also lives on the The Arcway database page.
Does Corstilax change on Heroic or Mythic?
The current Adventure Guide text for this encounter does not include separate Heroic or Mythic sentences we can quote. If a later client build adds them, they appear here automatically.
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.