Not seen until the Transport Circuit, the following three types of factotums appear multiple times and are unique to the trial.
Calefactor
Large Factotum using a two-handed sword
| Locations | Transport Circuit, Reprocessing Yard, Halls of Fabrication |
| Achievement | Refabricant Slayer |
Abilities
Scalding Shield: Flame shield, which reflects projectiles and damages nearby enemies.
Steam Breath: High damage frontal cone ability, which snares as well as doing damage. Targets hit also have their resistances reduced.
Powered Realignment: Blockable attack that sends sparks flying behind the target if it is not blocked.
Dessicate: Cleaving strike which hits all targets in front of the Calefactor. A Heavy Bleed also affects enemies hit. Subsequent hits increase the damage of the bleed.
Capacitor
Large Factotum with cannons for arms
| Locations | Reprocessing Yard, Halls of Fabrication |
| Achievement | Refabricant Slayer |
Abilities
Conduit Strike/Draining Shock: The Capacitor attacks the location of the furthest target with a lightning strike from the sky. This strike branches into smaller jolts emerging from the site of impact. Enemies hit are affected by Draining Shock, which stuns, does damage, and drains magicka until the stun is broken.
Self-Induction: Enemies around the Capacitor take damage, lose a percentage of their Max Magicka, and are snared for two seconds.
Discharge: The Capacitor fires bolts of electricity at its enemies doing damage and reducing their resistance to shock attacks.
Dissector
Large Factotum using dual blades
| Locations | Transport Circuit, Reprocessing Yard, Halls of Fabrication |
| Achievement | Refabricant Slayer |
Abilities
Invasive Cut: Blockable attack which stuns and knocks back when undefended. In addition, enemies who fail to block are also affected by Phlebotomize, which is a cleansable bleed that increases in damage each tick.
Hoist Subject: The Dissector launches a chain from its hand, which grabs and pulls an enemy close.
Dissection: Frontal cone attack that damages and affects those hit with Blood Loss. Subsequent hits increase the damage of Blood Loss.
Defeating Pinnacle Fabricant creates a Rift at the center of the arena, which sends each player to the Transport Circuit. Refabricated Spiders attack throughout the loop. Similar to those found in Clockwork City, Whirring Blade Traps also pose a danger as they glide along grooves in the walkway.