Answer:
Useful tool for who in darkness dwell. Within you, corrupting like a deadly spell.
What is it that you must give before you can keep it.
You will find me with four legs, but no hair. People ride me for hours, but I don't go anywhere without needing to be tugged. Jerked or turned on, I always manage to be ready for work.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.
I have many feathers to help me fly. I have a body and head, but I'm not alive. It is your strength which determines how far I go. You can hold me in your hand, but I'm never thrown.
What did the piece of wood say when he saw the screwdriver and screws approaching?