Ghostblade
From Warhammer 40k - Lexicanum
Ghostblades are a facsimile of the mysterious phase swords of the Callidus Assassin Temple created by the Magi of the Forge World Core Theta in the aftermath of an Imperial Compliance. Unlike their original template, Ghostblades require a backpack to supply the weapon with power and are prone to overheating, a trait that can harm both the weapon and its user. The Magi who pioneered the weapon lacked an actual example to study and were never able to truly replicate the design.[1]
