Swords are cool. That's why heroes prefer them. But for some authors, it seems that a sword with a plain, straight blade, a curved katana or scimitar, or some other exotically functional real blade like the wavy kris is still not quite cool enough. They need to invent their own special blade. So screw functionality and ergonomy! They will design swords with the weirdest shape possible, as long as [...] [tvtropes.org]