Acid Dragon Breath

A stream of acid forming a line 60 feet long and 5 feet wide blasts out from your mouth in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 6d6 lightning damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 2d6 for each slot level above 3rd.