Close.. but 1 level under does 20% reduction. 2 is 40, 3 is 60.. and then after that.. you do 80% less. I know you do damage because when I was level 10, I was exploring earth cause I can. And when you spawn and you go straight, there's the stairs that go underground. There's a bunch of level 18 enemies, I didn't know that at the time, they were just skulls.. I killed one, took me about half an hour. But I wanted to do it. Just to see if I could. So you do damage. Just not alot. If anyone has the real numbers... that would be helpful.