Plate Mail of Etherealness
Very rare magic armor (plate)
Property: The armor has 6 charges. As an action, you speak the command word and expend 1 charge. You step into the border regions of the Ethereal Plane, with all your equipment. You become incorporeal and invisible for 10 minutes or until you choose to end it by speaking the command word again (no action required). During this time, you can move in any direction. If you move up or down, every 5 feet of movement costs an extra 5 feet. You can see and hear, but everything looks gray, and you cannot see anything more than 60 feet away. You regain all expended charges each day at dawn.
The metal plates of this armor resemble polished marble, with white markings in cloudlike patterns across their surfaces. The plates are as light as cotton when lifted or worn. Donning the armor creates a sensation of light-headedness, reminiscent of intoxication, that quickly passes. The wearer also seems to fade slightly from reality, taking on a smoky and ghostlike appearance. The armor is forged from an alloy of mithral and rare minerals mined from chunks of earth drifting in the Ethereal Plane. Working with this substance requires tremendous skill and magical aid, since it phases in and out of an ethereal state while being shaped. The first suit of this armor was created by servants of a great khan of the dao (a genie race native to the Elemental Plane of Earth). Others found in the world use the same pattern, crafted in exotically elegant styles.