The ruling castes of the Adeptus Mechanicus are the Tech-Priests – robed zealots whose flesh is replaced over time with bionic enhancements. These technosavants carry a bewildering array of titles, and each one specialises in arcane knowledge and esoteric lore, perpetuated with religious fervour.
To be promoted from the Skitarii maniples to the Serberys corps is a great honour. They ride swift quadrupedal constructs whose razor-clawed limbs allow them to manoeuvre easily over the most shattered terrain, while their riders are mag-locked in gyro-stabilised positions.
One of many specialised castes of cyborg warriors available to the Adeptus Mechanicus, the Pteraxii are optimised for instinctive reaction and agility. Pteraxii’s reflexes are accentuated by paring back elements of cogitation that impede their primary function.