Elderstahl was a powerful sword used by the fire demon Surtur. It was crafted by dwarfs. It could change in size and shoot powerful blasts of fire. It also corrupted the user by seeking out their dark side and exploiting it. The Dark Elves of Svartalfheim asked Surtur to defeat the Frost Giants of Jotunheim for them. Surtur saw this as an opportunity to take over the nine realms. He used Elderstahl and attacked them but fought Odin and Gungnir. Odin eventually killed the demon and his sword was lost. Warriors then tried to find the sword in their quest for manhood. The Jotuns feared it would be used to destroy them. Tales of Surtur's final battle were told to children in Asgard. Thor, Loki, and the Warriors Three found the sword and Thor used it to kill two Jotun sentries. Horrified at the