Vapor Wave

You transform yourself, along with everything you're wearing and carrying, into a vapor cloud for the duration. The spell requires concentration and if you lose concentration, you return to your original form wherever you stand. The spell can otherwise be dispelled as a bonus action on your next turn.

While in this form, the your only method of movement is a flying speed of 25 feet. You can enter and occupy the space of another creature. You have resistance to nonmagical damage, and have advantage on Strength, Dexterity, and Constitution saving throws. You can pass through small holes, narrow openings, and even mere cracks, though it treats liquids as though they were solid surfaces. You can't fall and remain hovering in the air.

While in the form of a vapor cloud, you can't talk or manipulate objects, and any objects you are carrying or holding can't be dropped, used, or otherwise interacted with. You also can't attack or cast spells.