Alchemist's Expertise (AS)

You hurl a bubble of acid. Choose one or two creatures you can see within range. If you choose two, they must be within 5 feet of each other. A target must succeed on a Dexterity saving throw or take 1d6 acid damage.

This spell’s damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).

When you cast this spell, if you're proficient with Alchemist's Supplies and use part of a set in this spell's casting, the DC for the spell gains a bonus equal to half your proficiency bonus or your entire bonus if you only target one creature.