Curio's Acidic Assualt

A small globular slimy bead shoots towards a point of your choice within range of you, and then expands outwards rapidly bursting like a bubble. Each creature in a 10 foot radius sphere centered on that point must make a Dexterity saving throw or else take 5d6 acid damage and have its armor class reduced by 2 for 1 minute. On a successful saving throw, the creature takes half that damage and suffers no additional effect.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot above 3rd.