Acid Rain

You cause a deluge of acid rain to pour in a 20-foot radius 60-foot high cylinder for the duration. Each creature in the area when the spell is cast and when a creature ends its turn in the area, must make a Constitution saving throw. On a failure a creature takes 5d6 acid damage or half as much damage on a success.

If it is already raining you may ignore the material component for this spell and it deals an additional 1d6 damage.

On each of your turns after you cast this spell, you can use your action to move the rain 20 feet in any direction.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 for each slot level above 4th.