Answer:
Once you have it, you want to share it. Once you share it, you donβt have it. What is it?
What goes up but never goes down?
They are the group who manages the winged engines of war.
I reach for the sky, but clutch to the ground. Sometimes I leave, but I am always around
It is a popular afterlife destination where you want to send people when you're mad at them.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.