Nemesis, The God Killer Blade

A sword whose visage was conjured by Lucien Novelle. Not much is known of the blade, although Lucien theorized that it was somehow related to the Vestiges, if not a Vestige itself. He claimed that he saw the Hooded Entity wielding it. The Hooded Entity, Khyber the Silent One, used it to slay Lucien Novelle's guardian angel, Seraphina.
Lucien asked Claudia if she had seen the sword, conjuring its visage once again. She seemed baffled by it, claiming to know it somehow, and asking Lucien to inform her should he learn more of it.
It was revealed that it was the blade that Claudia used against her parents in her revolution. Though, it is not known how it came to be in the hands of Khyber. The Eyes of the Archon have promised to return it to Claudia given that she assists them in the fight against Khyber.
The Legend Lore of the blade revealed it was the sister of another sword known as Aeon.
It was used by Lucien Novelle, controlled by Khyber, to slay Arabella Whitby. Its malevolent powers that stop the slain from being revived by conventional means were shown to be true, at the Eyes of the Archon's failure to return the woman to life.