Mortius

Mortius is the name given to an Armiger Warglaive of House Geckoling which somehow managed to be assembled literally ass-backward. The machine spirit of this Armiger is particularly resilient, as is its systems. Perhaps understanding their mistake, but too lazy to fix it the tech-priests who assembled him compensated with superior attention to detail in other areas?

Whatever the case may be, Mortius earned infamy fighting an expeditionary force of Tau in the Battle for Kaisreach, tanking hits that would have crippled even larger Imperial Knights. The only enemy to significantly damage the Armiger was the Tau Fireblade Bitch, who inflicted heavy damage with her rail rifle by aiming for weak points and forced Mortius into retreat. Nevertheless, the firepower and attention focused on Mortius allowed a force of Fire Scorpions to sneak up nearly unnoticed and secure the Imperial objectives, resulting in the Tau losing the battle.