Answer:
There's one in every deck of cards and in a famous movie
What do you have in December that you don't have in any other month?
What do you call a witch that lives in the sand?
A young man wants to have it, but when he has it he no longer wants it. Blade in hand he attacks it And does his best to remove it. Yet he knows that it is all in vain.
Angels and pilots earn these.
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.