The Souldrinker is a quite light greatsword, lost in the very south of Mordent, in the Pthaf County. It was used for centuries to deliver capital punishment, preventing the condemned to be resurrected by devouring their souls.
After a curse fall over Pthaf County, all life vanished from the area, and the sword was burried in the catacombs of Pthaf castle.
Traditionally only people with dragon blood can use this sword, and it have a terrible fame to poison people's dreams, making they fall into madness.
I created it for my Dungeons & Dragons Ravenloft campaign, and its now in the hands of a player