Halls of Fabrication

Vvardenfell · Morrowind

Part of Sotha Sil's Clockwork City, reached from Vvardenfell. The Halls are a vast factory that designs, builds and recycles his machines, and the fabricants inside have kept working without him.

Bosses5

Hunter-Killer Negatrix and Hunter-Killer Positrox
Two verminous fabricants opening the Halls of Fabrication. Kept near each other they form a link that makes both stronger.
Pinnacle Factotum
A factotum that steps in once the two Hunter-Killers are down, as the trial's second boss.
Archcustodian
An oversized Dwarven Spider, and the third boss of the Halls of Fabrication.
Reactor, Reclaimer and Reducer
Three factotums fought as one encounter, the fourth in the Halls of Fabrication.
Assembly General
A Dwarven Colossus and the last boss of the Halls. It's really the intelligence that runs reassembly, driving a body for the fight while Divayth Fyr works on the problem underneath.

Most run comp

The exact group makeup most often logged clearing this trial at this difficulty. The lines a subclassed build mixes are not listed.

Tank

Pureclass Warden

Healer

Pureclass Arcanist

DPS

3× Pureclass Necromancer · 2× Pureclass Nightblade · Pureclass Arcanist · Pureclass DragonKnight · Pureclass Sorcerer · Pureclass Templar · Subclassed

This exact makeup was logged 5 times.

Ranked by how often a build is run, from the top 100 boss-DPS parses per boss. U50 data, as of 4 Aug 2026.

Sets from this trial4

Every set that drops here, with all of its bonuses. Perfected and non-perfected versions share one entry.

Automated Defense
Trial · Heavy
- (2 items) Adds 1206 Maximum Health
- (3 items) Gain Minor Aegis at all times, reducing your damage taken from Dungeon, Trial, and Arena Monsters by 5%.
- (4 items) Adds 4% Healing Taken
- (5 items) When you use an Ultimate ability while in combat, you and the closest 5 group members within 28 meters of you gain Major Aegis for 1 second per 10 Ultimate spent, reducing your damage taken from Dungeon, Trial, and Arena Monsters by 10%.
Inventor's Guard
Trial · Light
- (2 items) Adds 129 Magicka Recovery
- (3 items) Gain Minor Aegis at all times, reducing your damage taken from Dungeon, Trial, and Arena Monsters by 5%.
- (4 items) Adds 4% Healing Done
- (5 items) When you use an Ultimate ability while in combat, you and the closest 5 group members within 28 meters of you gain Major Aegis for 1 second per 10 Ultimate spent, reducing your damage taken from Dungeon, Trial, and Arena Monsters by 10%.
Master Architect
Trial · Light
- (2 items) Adds 1096 Maximum Magicka
- (3 items) Gain Minor Slayer at all times, increasing your damage done to Dungeon, Trial, and Arena Monsters by 5%.
- (4 items) Adds 129 Weapon and Spell Damage
- (5 items) When you use an Ultimate ability while in combat, you and the closest 5 group members within 28 meters of you gain Major Slayer for 1 second per 10 Ultimate spent, increasing your damage done to Dungeon, Trial, and Arena Monsters by 10%.
War Machine
Trial · Medium
- (2 items) Adds 1096 Maximum Stamina
- (3 items) Gain Minor Slayer at all times, increasing your damage done to Dungeon, Trial, and Arena Monsters by 5%.
- (4 items) Adds 129 Weapon and Spell Damage
- (5 items) When you use an Ultimate ability while in combat, you and the closest 5 group members within 28 meters of you gain Major Slayer for 1 second per 10 Ultimate spent, increasing your damage done to Dungeon, Trial, and Arena Monsters by 10%.