Acid Rain

A dark cloud swirls out above a point you choose within range and then pours down into a sleet of biting caustic rain. Each creature in a 20-foot-radius cylinder centered on that point must make a Dexterity saving throw. A target takes 8d6 acid damage on a failed save, or half as much damage on a successful one.

The acid spreads around corners. It corrodes non-magical metal in the area that isn't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.