How powerful is the Dragon Sword(Ninja Gaiden)

I recently started the Ninja Gaiden series and loved it a lot so here is a question for fans in Giant Bomb

Well, if I had to quantify it scientifically, I'd say it's about as powerful as a '67 Chevy blowing through the guardrail on a windy Rocky Mountain road.

SO powerful.

http://ninjagaiden.wikia.com/wiki/Dragon_Sword