Fenrir
Monstrous wolf - son of Loki + giantess Angrboða. Siblings: Jörmungandr (Midgard Serpent) + Hel (underworld). Old Norse: 'Fen-dweller' or 'Fenrisúlfr.' Prophecy foretold he would destroy gods. The gods tried Three fetters: (1) Laeding (broke), (2) Dromi (broke), (3) Gleipnir - made by dwarves from Impossible things: sound of cat's footsteps, woman's beard, mountain roots, fish's breath, bird's spit, bear's nerves. Looks like silk ribbon but unbreakable. The gods Tricked him - said 'test your strength.' Fenrir knew if he couldn't break it, they'd never free him. He agreed Only if Tyr put his ha