Conjure Acid

You brandish the vial of acid used to cast the spell and conjure a globe of black undulating acid that bursts forth in a projectile cone. Each creature of your choice that you can see in a 60-foot Cone makes a Dexterity saving throw, taking 5d8 Acid damage on a failed save or half as much damage on a successful one.

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 3.