Fenrir (mythology)

Fenrir is a monster in Norse mythology and one of several monstrous offspring born to the traitorous god known as Loki. Fenrir was born an abnormally large and powerful wolf with great intelligence but an evil temperment and became a formidable enemy of the gods until they arranged for mystical chains to be forged to contain the monstrous beast until the day of Ragnarok. Upon which Fenrir would be released alongside all other evils in order to engage in Ragnarok. He was prophesied to kill Odin, the Lord of Asgard.