Even now in Gen IV, it only learns 3 Dragon attacks. And only 2 actually inflict damage (Dragon Rage and Twister). Water/Dragon would have made more sense, but maybe between the having one original Dragon move and a base Attack of 125, maybe they figured they had to give it an obvious weakness with Electric... So wrong! :)
Lol, I know! It definitely looks like it should be a dragon! Supposedly it's because when it was introduced in Gen I, Dragon Rage was the only Dragon-type attack and would only do 40 points of damage, so it wasn't really worth it anyway. Go figure...
Yeah, Gyarados isn't a Dragon-type, but it should be!! I had already picked my username, and it seemed to fit. I mean, it doesn't really have wings, so I guess it would glide, more or less... :)