The Thousand Sons Legion acknowledge the usefulness of the unliving might of battle-automata as obedient, resilient, and ultimately expendable shock assault units. As with every other facet of warfare, the use of such battle-automata is something the Legion believes they can improve upon with their psychic arts. The Castellax-Achea is governed by a psi-sensitive crystal matrix – an illegal innovation which allows the Legion's psykers to directly manipulate these robots like murderous puppets with a degree of limited self-will.

This multipart resin kit builds one Castellax-Achea