Now, duels on the other hand? that would be a nice piece of lore, but the Ghost typing doesn't really lend itself to being a knight's weapon IMO. --- Harmony is peace. Peace is unity. Unity is harmony. I tell this to the King Nook. He ask me to leave.
Why'd they have to make a sword Pokemon? All these sword fantasies just ruins the Pokemon.
It's not just a sword, it's a POSSESSED SWORD! I would hate it if it was just a living sword, because that makes no sense and sounds like something that belongs in Digimon. But since its a GHOST, I think we might have some kind of story about the spirit of the warrior living forever in the sword, which I'm pretty sure is a pretty common thing in Japanese culture, I know I've read a few stories with that happening.