Joker- "So when you find yourself locked onto an unpleasant train of thought, heading for the places in your past where the screaming is unbearable, remember there's always madness. Madness is the emergency exit.
The Rubricae are warriors of the Thousand Sons Legion. These forever cursed Chaos Space Marines exist only as dust, entombed by power armour. Rubricae are automatons used by Thousand Son Sorcerers as bodyguards and enforcers.