Crystal Shell

Crystal Shell is a Rare Loot Item that can be used to craft many Epic Items, but doesn't do anything in itself. To get a Crystal Shell, you must either defeat an Auracryst (which will always drop one) or defeat a random blimp with 4000 HP or tougher with 7% chance of getting it. Some of the items that can be crafted using Crystal Shell are:
 * Monkeys' Auracryst
 * Prism