Mutagenic Mist

5th-level conjuration (sorcerer 5, warlock 5, wizard 5)

Casting Time: 1 action

Range: 60 feet

Components: V, S, M (a potion of a transmutation spell)

Duration: 1 minute

You create a bank of multihued mist that shifts constantly in color and turgidity, obscuring vision as fog cloud.

Creatures have disadvantage on saving throws against polymorph spells or effects.

Any creature beginning its turn within the mutagenic mist makes a Constitution saving throw or is affected as fleshcurdle, acquiring a randomly determined deformity (equal chance of offense, defense, or movement, rolling randomly to determine the specific deformity if a creature possesses more than natural weapon or more than one form of movement). A creature failing multiple saving throws can acquire multiple deformities from the mutagenic mist.

These deformities remain for 1d6 rounds after a creature leaves the mutagenic mist.