he most common of the widespread Castellan-type battle-automata in service, the Castellax is a general battle unit developed during the Great Crusade from its ancient forebear. Primarily intended for siege work and shock assaults, the Castellax Battle-automata is a hulking humanoid machine with a notoriously aggressive and responsive machine-spirit, and an enviable reputation on the battlefield.

The Castellax, employed in units of one to five by the Legio Cybernetica, has a standard configuration of bolter and bolt cannon armament, and is able to maintain a punishing barrage of