Answer:
Tear off my skin. I won't cry, but you will. What am I?
I am an activity involving pins flying in the air.
The more you take away from me the bigger I shall get.
It's red liquid but not liquid and it's not red. What is it?
I store fire-breathing animals.
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.