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Gaseous Form

Transmutation
Level: 3rd-level
Casting Time: 1 action
Range: Touch
Duration: Up to 1 hour
Components: V, S, M
Materials: A bit of gauze and a wisp of smoke.

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 hit points. An incorporeal creature isn't affected. While in this form, the target's only method of movement is a flying speed of 10 feet. The target can enter and occupy the space of another creature. The target has resistance to nonmagical damage, and it has advantage on Strength, Dexterity, and constitution 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 otherwise incapacitated. While in the form of a misty 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.

Concentration

Spell Details

School: Transmutation
Level: 3
Ritual: No
Concentration: Yes
Classes: Druid, Sorcerer, Warlock, Wizard
A-Tier Exceptional utility and survivability tool that enables escape, scouting, and creative problem-solving in and out of combat.

Player Guide

Use Gaseous Form as a defensive emergency button when allies face overwhelming damage—the target becomes immune to nonmagical damage and can occupy enemy space. Offensively, send a gaseous ally through bars, keyholes, or small gaps to scout, rescue allies, or sabotage enemy positions while remaining untargetable. The concentration cost is steep, so avoid casting if you need to maintain battlefield control spells, but the 1-hour duration means strategic pre-casting before infiltration missions is powerful.

DM Tips

Gaseous Form is powerful for player infiltration but can trivialize locks and guards if overused—consider wind effects, airtight chambers, or anti-magic zones for challenging encounters. Remember the creature can't speak or manipulate objects while gaseous, preventing it from being a complete problem-solver.