Fenris
This is a wolf from Norse mythology, also known as Fenrer, one of the three children of the evil Loki and the giant sorceress Angerbode. Brother of Hel (a giant and gloomy goddess of darkness) and the serpent Migrad.
According to legend, Fenris was raised among the gods, but only Tyr was brave enough to feed him. As time passed, the wolf grew so large that the gods considered him dangerous. The oracles had already foretold it: one day, the beast would be fatal. For this reason they decided to chain him. However, Fenris broke his bonds. They tried again several times, and after failing, they finally used the chain Gleipner, crafted by an elf. This wondrous chain was made from six materials: a woman's beard, the roots of a mountain, the sound of a cat's footstep, the sinews of a bear, the saliva of a bird, and the breath of a fish. These components gave the chain a supernatural resistance. When they attempted to bind the animal, the beast set his condition: that one of the gods place a hand in his mouth. Tyr was the only one who dared to comply with the request, and thus he lost his right hand. The gods chose not to put Fenris to death, but cast him into the river Von. From that time on, the wolf Fenris has also been known by the name of Vonargander.