Caustic Fumes

Until the end of your turn you leave a trail of acidic fumes that fills a 5 foot radius around any space you move through. Any other creature that enters the radius or starts their turn in the radius must make a constitution saving throw. A creature takes 2d6 acid damage on a failed save or half as much on a success. At the start of your next turn the fumes disappear.

At Higher Levels: When you cast this spell using a slot of 2nd-level or higher, the damage increases by 1d6 per slot level above 1st.