Caustic Cannonade

You launch a highly concentrated, caustic spray toward a point you can see within range, dousing a 30 ft. radius sphere centered on the point you choose. 

Each creature in that area must make a Dexterity saving throw. On a failure, a target takes 6d6 acid damage, and is doused in acid. On a successful save, a target takes half as much damage, and is not doused.

A creature that is doused in acid takes 2d6 acid damage at the end of each of its turns. A target can use an action to remove the acid covering them, ending the effect.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, both the initial damage and the ongoing damage increases by 1d6 for each level of slot above 5th.