Blackblade

The Black Blade was a mystical weapon created by Dakkon after Geyadrone Dihada promised him the power of a god. After each heating of the weapon during its creation, Dakkon plunged it into a powerful slave to steal his or her life-force. When Geyadrone received it, she took Dakkon’s soul with the sword. It was used by Sol’Kanar the Swamp King until Dakkon took it back.

It is unknown what happened later, but a Future Sight card indicates that it came into the possession of Korlash, possibly a descendant of Dakkon.