ASTA said
Well, it isn't so much the weapon that's the qualifying factor; it's whatever is using it. I mean, it's a melee weapon. Unless people are swinging around live ICBMs as clubs, then I guess that counts as an 'abnormal sword' that has the potential to cause great havoc should its wielder hit something with it.EDIT: Unless the sword is made out of unobtainium and not some common material. Well.Meh.
I believe the proper term is 'Phlebotinum'. :3