Answer:
I am gentle enough to soothe your skin light enough to fly in the sky and strong enough to crack rocks.
I have a face and two hands, but I have no arms or legs. Six plus seven is one. What am I?
A dragons tooth in a mortals hand I kill I maim I divide the land.
I must be broken before you can use me.
What has an eye but cannot see?
No matter how little or how much you use me, you change me every month.