Disperse Self

You transform yourself along with everything you're wearing and carrying, into a dust cloud until dispelled. The spell ends if the creature takes any damage. 

While in this form, the target's only method of movement is a flying speed of 10 feet. Attackers must roll at disadvantage, and the user gets advantage on dexterity saving throws. The target can pass through small holes, narrow openings, and even mere cracks, though it treats liquids as though they were solid surfaces. The target can't fall and remains hovering in the air even under status conditions.

While in the form of a dust cloud, the target can't talk or manipulate objects, and any objects it was carrying or holding can't be dropped, used, or otherwise interacted with. The target can't attack or cast spells.