Acidosis

A spray of corrosive liquid bursts forth from your hands. Each creature in a 60-foot cone must make a Dexterity saving throw. A creature takes 12d4 acid damage on a failed save, or half as much damage on a successful one. On a failed save, the creature is also slowed (as if effected by the slow spell) until the end of their next turn.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 2d4 for each slot level above 6th.