Armor of the Shadow Serpent

This leather armor, though not crafted from the scales of a shadow dragon, has been infused with a degree of the same fell energies that warp normal draconic entities into their dark counterparts.

Living Shadow. As a bonus action, you become resistant to all damage except Force, Psychic, and Radiant for 1 minute while in dim light or darkness, and gain (or increase) Darkvision by 60 feet. This property may only be used once per long rest.

Additionally, you have a +1 bonus to AC while wearing this armor.

Made from tough but flexible leather, studded leather is reinforced with close-set rivets or spikes.

Notes: Bonus: Armor Class, Combat, Warding