Why give a sword a ranged attack that doesn't make a dent on higher difficulties? Saying "switch to a bow" doesn't make sense, the sword is special in that it is clearly meant to be used at range. But why limit the special to low level play on lower difficulties?
Well, imagine how op it'd be to get it with, say 60 damage at a low level? I still think it works fine. If you use it as a close quarters weapon, it is immensely useful in big crowds and one on one fights. Imagine a greatsword that has a fire damage effect, but the power attacks shoot fire from the blade, only thirty, but still, and the fire effect never goes away! Sick. Even moreso if you combine it with the sideways swipe attack. The sword would be better if it was enchantable as well, but it's not bad as it is. Not great, but not bad. Oh, and hi Fujikawa!

Still, I wish I could enchant it with drain stamina. Imagine the greatness of THAT! ERMAHGERD!