Princess Celestia summons the Mane 6 to track down a powerful sword that could spell the end of Equestria. Meanwhile, a young fencing prodigy uncovers an unknown relic in his fathers collection...

Humanized, but with wings and horns (if that makes any sense).
This is going to be edited by my friend, Tactical Bacon.
http://www.fimfiction.net/user/Tactical%20Bacon