Acidblob

A dim, green streak flashes from your pointing finger to a point you choose within range and then blossoms with a low splash into an explosion of acid. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d4 acid damage on a failed save, or half as much damage on a successful one.

On a failed save, each target will be covered in acid mucus for a duration of 5 turns, or until they scrape of the mucus. They will take 1d4 acid damage at start of each of their turns.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d4 for each slot level above 3rd.