Narsil, The Mighty Sword Of King Elendil. Narsil Is Perhaps The Most Famous Sword In "the Lord Of The Rings" Trilogy. At The End Of The Second Age Of Middle-earth, Narsil's Blade Was Shattered As Elendil Fell During The Last Alliance Of Elves And Men In The Great Battle Against Sauron. Isuldur, Elendil's Son, Then Used The Broken Hilt Of Narsil To Cut "the One Ring" From Sauron's Finger, Breaking The Bonds Of His Power And Banishing His Evil Shadow Into The Darkness.