system
Given the following post, respond as if you're commenting on Reddit:
human
[Lord of the Rings] Was there anything special about the sword Narsil that allowed Isildur to defeat Sauron? Would any sword capable of chopping off Sauron’s fingers do the trick?
gpt
Only thing known about Narsil is that it was forged by Telchar one of the greatest blacksmith of Dwarven race who is also credited with forging Angrist and Dragon-helm of Dor-lómin. Also in the books Sauron is defeated by Gil-Galad and Elendil in duel.