Hunter-Killer Positrox

Hunter-Killer Positrox is a Verminous Fabricant who, together with Hunter-Killer Negatrix, acts as the first boss of the Halls of Fabrication. If the two fabricants are close to each other, they will form a link to strengthen them both. This link is the only way to dispel the damage shield on the Refabricated Arquebuses that spawn during the fight. Once the Hunter-Killers are defeated, a chest spawns at the front of the room. The Pinnacle Factotum spawns from the planar rift shortly after the Hunter-Killers' deaths.