Acid Rain

As an action, you create a 10ft x 10ft cloud above a space within the range of the spell. When you cast the spell, and as a bonus action every turn after, you can cause acidic rain to fall from the cloud. Every creature within range under the cloud must make a DEX save, taking 4D6 Acid damage on a failure or half as much on a success. You can move the cloud up to 30 ft at the start of your turn. Constructs and creatures covered in or made of stone make their save at disadvantage.

At Higher Levels: For every level you cast this spell over 3rd, you can increase the damage of the spell by 1 D6 Acid Damage.