The laboratory's inhabitants are highly resistant to decay damage. Fire, on the other hand, is particularly effective against them, while ice is somewhat less so.
Failed ExperimentSmall and swift.
The Failed Experiment is not very dangerous on its own, but Igor can create more of them by activating the laboratory's mechanisms.
Successful ExperimentA more formidable foe whose equipment depends on the selected difficulty. On Normal difficulty, it may fight bare-handed; on Legendary, it wields powerful decay weapons.
The Successful Experiment can also restore its health during combat.
AbominationA large creature with extremely rapid health regeneration.
Effects that reduce the target's healing, along with powerful fire weapons, will help bring it down.
GobberThe Gobber attacks the Exile from a distance and tries to keep them at bay.
Rather than moving through the laboratory in a regular way, this enemy shifts between predetermined positions.
Igor the AssistantIgor is Dr. Darasche-Koh's assistant — and the key to the final boss's room.
Instead of engaging the Exile directly, Igor runs around the laboratory and activates various levers to make the Exile's life difficult.
The levers can release Failed or Successful Experiments, temporarily reduce the Exile's movement or attack speed, deal decay damage, or increase enemies' speed.
To open the door to Darasche-Koh, you'll have to catch and defeat Igor.
Dr. Darasche-KohDeep within the laboratory, its master awaits: Dr. Darasche-Koh.
A physician and alchemist, Darasche-Koh studied the properties of the Gray Decay. In the final battle, he puts the fruits of his research to use on himself.
The fight revolves around doctor's two forms.
In human form, Darasche-Koh keeps his distance, hurling alchemical grenades at the Exile. The blasts leave behind lingering clouds that deal decay damage and gradually reduce equipment durability.
At a certain point, the doctor drinks a potion and transforms into a monster. In this form, he switches to melee combat and deals significantly more damage.
The clouds of decay left behind during the first phase do not dissipate, however. You'll have to evade Darasche-Koh's attacks while keeping an eye on hazardous areas of the battlefield.
After a while, the doctor returns to his human form, and the cycle begins anew.
Ronald the RedThe Bone Powder gathered in the laboratory will come in handy back on the surface.
Ronald the Red of the Guardians of Purity awaits you at the entrance to the Leprosarium. He will exchange your Bone Powder for Active Solution.
Active Solution lets you enter infected rooms and reach additional rewards.
New Elemental Forge FormulasNew formulas for decay weapons have been added to the Elemental Forge.
These formulas can be found in the Abandoned Leprosarium and work the same way as the fire weapon formulas you're already familiar with.
Four are for existing weapons:
- Ritual Dagger
- Cleaver of a Hundred Diseases
- Bow of Decay
- Insatiable Mace
The Ritual Dagger formula is available immediately to all Exiles with an Elemental Forge.
Four more formulas let you craft entirely new weapons:
- Chimera Bite
- Poleaxe of the Plague's Chosen
- Epidemic
- Scavenger's Knives
New Decay Weapons