Shadow Guard Mask

While attuned to this mask, you are immune to magical effects or abilities that see invisibility or
divination magic that discerns your location. You
can at will cast Disguise Self. When you are in
dim light or darkness, as a bonus action you can teleport up to 60 feet to an unoccupied space you
can see that is also in dim light or darkness. You
then have advantage on the first melee attack you
make before the end of the turn.
Dark shadow surrounds this jade mask, and after attuning, it vanishes