It is rumoured that they are able to generate biological electro-plasma and are known to have created devices of an unknown alloy known as Xenarch Conduction Spines designed to focus as well as generate energy directly from Xenarch biology. Their electrical weapons became highly prized as they utilized charge cells and capacitators that were beyond the capabilities of the Adeptus Mechanicus to manufacture. One of their most notable weapons is the Xenarch death-arc, a rifle-sized weapon that unleashes a series of arcing bolts of lightning.
Little contact had been made between the Imperium and the shadowy Xenarch empire that is located in the Northern Rim. In 989.M41, Helbrecht of the Black Templars Chapter was responsible for the final subjugation of the Xenarch in the Sigilare Nebula.
- 1: Xenology, Artefact Studies
- 2: Inquisitor Rulebook, pg. 74
- 3: Dark Heresy: Radical's Handbook, pg. 200
- 4: Codex: Black Templars (4th Edition), pg. 43