A small round cantine, that is strapped around its wearer with a leather strip. It has the ability to never run dry. It will be able to contain any type of liquid such as acid or lava. It will also never run out.
A world based not on light and dark in conflict, but light and dark in balance. A world governed by a giver and a taker, rather than a creator and a destroyer. A world where evil is as much a corruption of light as it is darkness. Conflict arises out of a will to upset the balance.