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
More Sister of Battle goodness - I love these girls. Background in the Warhammer 40K game is that the church is forbidden "men under arms" . . . so they have militant orders of battle nuns in powered exo armor with full-automatic armor-piercing gyrojet rifles.
great crusade pre heresy thousand sons - Google Search