Dainsleif
Dains-leif in Norse mythology, is the sword of king Hogni, the father of the sorceress Hildur. The sword had been made by dwarfs, and had the attribute that, once unsheathed, it must shed blood, and that the wounds made by it were incurable. The war, which originated between Hogni and Hedin, from the seizure of Hildur, will continue, by the force of this sword and Hildur's strategy, to the end of the world.