Sköll.
Sköll, meaning "Treachery" in Old Norse, also called the Sun Dog, is a warg that chases the horses Árvakr and Alsviðr, that drag the chariot which contains the Norse goddess of the sun Sól through the sky every day, trying to devour her.
Description[]
Sköll is a monstrous celestial wolf who chases the sun tirelessly and without end until the end of days. He is often depicted as an ethereal white wolf but with a size so large he can swallow stars.
Overview[]
Sköll along with his brother is also said to be the child of the monster wolf, Fenrir, whom shall devour the chief of the Norse gods Odin at Ragnarok. Sköll was said to have taken his father's attributes in devouring any ray of hope that both the gods and humanity have, and that ray being the very sun itself. Alongside his brother, Sköll is the father of the Wargs.
Sköll has a brother, Hati, who chases Mani, the Norse god of the moon. At Ragnarök, both Sköll and Hati will succeed in their quests. However, by the end of Ragnarök, Sköll and his brother will also meet their end. Sköll would be killed by Freyja and her Valkyries when the latter ensnare Sköll with unbreakable rope, only for Freyha to drive her sword into the belly of the wolf, and slice out the light that was swallowed by him.