Sting (Middle-earth)
Sting has the magical ability to detect orcs or goblins nearby, glowing blue in their presence, as it did when the Fellowship encountered orcs in the mines of Moria. Tolkien establishes this as a common property of First Age Elf blades, particularly those forged in Gondolin. Sting is also exceptionally sharp. Bilbo manages to thrust it without effort deep into a wooden beam at Rivendell. Frodo also wounds a troll in Moria, after Boromir notches his own sword with his attempt. Sam uses Sting to cut through the giant spider Shelob's strong webs with ease, and also wound the spider, driving it away from the paralyzed Frodo.
Völsunga saga
Odin appears a number of times to assist characters with his magic and powers. At the start of the saga, he guides his son Sigi out of the underworld. He also sends a wish maiden to Sigi's son Rerir with an enchanted apple that finally allowed Rerir and his wife to have a child. Later, he appears as an old, one-eyed stranger and sticks his sword into the tree Barnstokkr during a feast at the palace of King Völsung, declaring that “he who draws this sword out of the trunk shall receive it from me as a gift, and he himself shall prove that he has never carried a better sword than this one,” which King Volsung's son Sigmund does.