The Glaive of Vengeance

The White Scars discovered this ancient relic during their conquest of the Bale-star Cluster, far beyond the Eastern Fringe. The Glaive of Vengeance was the very weapon once wielded by the great Kyublai Khan, before the Chapter Master was murdered by the Dark Eldar of the Bloodied Talon. A crackling energy field surrounds the fearsome curved blade that extends from the weapon's adamantium haft, enabling it to cut through any armour. Some among the White Scars claim that the spirit of Kyublai Khan still clings to the glaive, and that his endless thirst for revenge upon his killers is what makes this weapon seem to lunge at the foe with a will of its own.