Here we have the first proper appearance of automatons in the comic. Just as a refresher course in case you haven't read the bestiary: automatons are a type of construct, and could be described as a sort of clockwork golem. A crystal core holds the magic that powers the golem and gives it life, and often resides in the automaton's head.
Automatons are preferred over golems for the usage of magic items and to assist wizards in spellcasting, because their forms can be tailored to specific needs and certain spellcasting rituals. In this case, the automatons under Falconus' control aid the usage of his force magic by serving as points on a very large arcane circle.