Answer:
I make you weak at the worst of all times. I keep you safe I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak but seldom the bold.
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
There's not a kingdom on the earth I haven't traveled over and over and though I know not whence my birth yet when I come you know my roar. I through the town do take my flight and through the fields and meadows green and whether it be day or night I neither am nor can be seen.
I make a living following the wealthy and beautiful.
I can be driven but have no wheels. I can be sliced but still remains whole
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.