Corrosive Splatter

You launch a ball of Acid at a point you can see within 30 feet. Each creature in a 10-foot-radius circle centered on that point must make a Dexterity saving throw. On a failed save, a creature takes 3d6 Acid damage; on a successful save, it takes half as much.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 1.