Feyscale Armor
Armor (scale mail), legendary (requires attunement)
The scales and feathers of an ancient faerie dragon can be used to create a suit of potent defensive armor. While wearing this armor you have a +2 bonus to AC, you are immune to the frightened condition, and you have resistance to psychic damage.
As a bonus action, you can conjure an illusory duplicate of yourself in an unoccupied space you can see within 30 feet. The duplicate is indistinguishable from you even to creatures with truesight until it would take damage. Even after the duplicate’s true nature is revealed, when you attack or cast a spell, you can choose to have the effect originate from the duplicate’s location instead of your own. Creatures moving away from your duplicate provoke opportunity attacks as normal. The duplicate lasts for 1 minute. Once you have used this ability, you cannot do so again you finish a long rest.
Ref: TPKB1 p200