When the darkened soul fell, the sword chose Soulsong to be it's wielder. Although Soulsong was always covered in the blue dust related to the dreamland's, she has never showed powers. Now her power is that of charisma. Her songs reach the heart of any wolf that listens. Villains can be saved, heroes corrupted. She can realign their morals how she wishes.
She is the granddaughter of Agethern the Starbound queen, which makes her ancestors Ashcore and Mystriel. As the legends die down and are forgotten, their power lives on through the wolves of Silverfell. It is said she can commune with the spirits.