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.
Gríma Wormtongue
Gríma, called (the) Wormtongue, is a fictional character in J. R. R. Tolkien's "The Lord of the Rings". He appears in the second and third volumes of the work, "The Two Towers" and "The Return of the King", and his role is expanded in "Unfinished Tales". He is introduced in "The Two Towers" as the chief advisor to King Théoden of Rohan and henchman of Saruman. Gríma serves as an archetypal sycophant, flatterer, liar, and manipulator, and is considered to be based by Tolkien on the Beowulf character Unferth.