Shadow's Set

This supple, finely-made suit of cloaked leather armor is soft as silk but tough as steel and covered in hidden pockets and weapon holsters. When its wearer dons the suit's hood, a gunmetal mask magically materializes over the wearer's face, granting Darkvision out to 100 feet. The wearer may then choose a non-mundane damage source as an action. The wearer has resistance to all damage of the chosen type until they remove the hood, choose a different damage type, or cancel this ability.