Ghostlight Shroud

Wondrous Item - Very Rare - Requires attunement

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A flowing shroud of woven, enchanted phase spider silk dupioni, sitting loosely tied around the body and arms. A trim of small couatl feathers in shimmering blues and greens run along the hem and sleeves, refracting the light like prisms.
While wearing and attuned to the Shroud, you gain a +1 bonus to your AC.
As an action, a wearer who is attuned to the shroud can activate it as a bonus action. It remains active for one minute, and cannot be reactivated until the next dawn.
While activated:

The shroud sheds bright, scintillating light in a 30ft radius, dim light in a further 30ft radius, and the shroud becomes weightless.

The wearer can see into the ethereal plane.

When taking the Attack action, the wearer can teleport up to 10ft before each attack to an unoccupied space they can see.

The wearer's weapon attacks can strike creatures in the border ethereal plane (eg. ghosts), ignoring their resistance to non-magical bludgeoning, piercing and slashing damage, and ignores any such creature's immunity to grappling.

In addition, when a ranged or melee attack would strike you, you may use your reaction to cloak yourself in light. You gain 25 temporary hit points, and all creatures of your choice within 20 ft. of you must succeed on a DC 17 Constitution saving throw or become blinded until the end of their next turn.
After shielding yourself, you cannot do so again until you have completed a short or long rest.