Answer:
I am a candy that looks like a shepherdβs staff.
I am a precious stone, as clear as a diamond. Though you can walk on water with my power, try to keep me, and I'll vanish in an hour. What am I?
If I have it I don't share it. If I share it I don't have it. What is it?
We applaud if you perform well.
I only exist when you are here. Where you never were I can never be.
Give it food and it will live, give it water and it will die.