Chaos Space Marines: Vex Machinator, Arch-Lord Discordant

A Lord Discordant is a machine-obsessed heretic who scuttles across the battlefield atop a Helstalker mount, all the while exuding a palpable aura of anarchy. His mere presence short-circuits machinery not already riddled with daemonic entities – actuators and servos whir erratically, and targeting augurs simply cease to function. The Lord Discordant siphons off the pained spirit of dying vehicles, using the harvested energy to reinvigorate other Daemon Engines or releasing it as a screaming beam to infect the systems of other enemy vehicles. The most famous among the Lords Discordant, Vex Machinator, brought anarchy to the hivesprawls of Vigilus during the War of Nightmares.