Arcan-o Cell

The Arcan-o Cell is a common item that can be found in most general goods stores that cater to adventurers. Initially designed in the western city of Raggendor, the Bastion of arcane science, this 5 inch diameter crystaline sphere has the unique ability to absorb elemental energy that it comes in contact with, up to 20 damage, including : cold, fire, lightning, thunder, radiant, and acid damage. Once absorbed, the Arcan-o Cell will store the energy for 24 hours, after which it will dissipate and revert to its uncharged form. The Arcan-o Cell can be thrown up to 40ft; if thrown it will shatter, releasing the stored energy in a 5ft radius at the point of impact. All creatures within the radius must make a DC 13 dexterity saving throw or take 3d6 of the stored damage type, halved on success.