Thallax

The Thallax, Thallax Cohort or Thallaxii were heavily augmented cyborg shock-troops utilized by the Ordo Reductor faction of the ancient Mechanicum during the Great Crusade and Horus Heresy eras in the late 30th and early 31st Millennia. The Thallaxii differed from the standard Skitarii regiments both in their purpose and the unique extent of their augmetics. The Thallaxi centuries utilised a divergent form of power armour technology known as the Lorica Thallax, which, unlike the armour used by its Space Marine counterparts, was permanently, surgically bonded to the body of the wearer.