Answer:
Hold the tail, while I fish for you.
A certain wizard resided in a city made from this gemstone.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
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.
What kind of room has no windows or doors?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.