You transform a willing creature you touch, along with everything it's wearing and carrying, into a misty cloud for the duration. The spell ends if the creature drops to 0 HP. An incorporeal creature isn't affected.
While in this form, the target's only method of movement is a flying speed of 10'. The target can enter and occupy the space of another creature. The target has resistance to nonmagical dmg, and it has advantage on Str, Dex, and Con 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 when stunned or incapacitated.
While in the gaseous form, the target can't talk or manipulate objects, and any objects it was carrying can't be dropped, used, or interacted with. The target can't attack or cast spells.
a bit of gauze and a wisp of smoke
Forma Fumus Vapos
Verbal Component (Alternative):
Until this hex ends and your body reforms, you'll be as smoke, a gaseous form.