Amulet of Magic Armor

While wearing this amulet, you can use an action to cast the mage armor spell on yourself from it at will.

This amulet has 2 charges. You can use an action to expend 1 charge and gain 2d10 temporary hit points. Any creature that hits you with a weapon attack while you have these hit points takes 2d8 force damage. The amulet regains all expended charges after a long or short rest.

Notes: Damage: Force, Damage: Force, by a druid, sorcerer, warlock, or wizard, Buff, Combat, Jewelry