You conjure a storm cloud to form above a point you can see within range. The cloud unleashes a relentless barrage of corrosive rain in a 20-foot-radius, 40-foot-high cylinder centered on that point.
When the cloud appears, each creature in the area must make a Dexterity saving throw, taking 3d8 acid damage on a failed save, or half as much damage on a successful one.
For the duration, the area is continuously bombarded. A creature that enters the area for the first time on a turn or starts its turn there must make the saving throw again, taking 3d8 acid damage on a failure, or half as much on a success.
The corrosive rain lightly eats away at surfaces, leaving faint sizzling residue, but does not ignite flammable objects.
When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd.
* - (A drop of acid and a vial of murky rainwater)
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