Key-blade? [Must be some kind of important--"key"--sword. Either that, or it's made out of keys, and that'd be just ridiculous, amirite? Either way, that's a good point.] Some people are just really strong. There's a guy I know from back home who would toss about monsters as big as he was. ...But you'd think that a sword as heavy as them would get out of control pretty easily.