Arguably the most famous weapon from the Final Fantasy franchise. It is thrown around with ease by its wielders even though it was forged from a small European car.
The Buster Swords exact origins are unknown, but the one of the most accepted theory is that it was originally used as an acupuncture needle for an ancient race of people. However, becuase of it's large size, the accupncture patients would often die as the sword would often go right through them. This ancient race apparently suffered from the I-D 10 T Syndrome (which often causes stubbornness and mental disabilities), as they are now all extinct, most likely because of their poor acupuncture practices.