Unlike the elegant Biomantic processes and techniques used in the development of creations like the Marksman Clone, the Brute Drone reflects the callous disregard the Spires have for the suffering of their creations. Selected from the least imperfect of the force grown drones they employ as cannon fodder, the prospective Brutes are carried off and subjected to a ruthlessly efficient testing process, to see if their bodies can survive the stress of transformation. Those who fail this test are left fit for little else but biomass recycling.