Helmet of Elements

Requires Attunement
Once per day after a full rest, you may choose an Element.
(Acid, Cold, Fire, Lightning, Poison, Thunder)
The wearer of this helmet gains resistance to all
damage of the chosen element.
Once per day as a reaction you may choose to give
a creature or an object of your choice a shield that
absorbs 5 * BaseLevel of the chosen damage type.