Answer:
The more you take, the more you leave behind.
I bubble and laugh and spit water in your face. I am no lady, and I don't wear lace.
Scythe of darkness, Shadow’s light. Guiding eye of thirteenth sight.
At first, I am nothing. Add something to negate. Add again to oppose. Add again to find the time to draw. Add once more to find nobody at all.
I have a title and many pages I am a genteel of genteel descent I am a killer veteran of war I am a slave to my lord Pledged to his service.
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?