Electric Sneeze

A source of magic begins to whelp up within your sinuses and then explodes from your nose in an electric torrent. Each creature within a 15-foot cone must make a Constitution saving throw. A creature takes 3d6 lightning damage on a failed saving throw, or half as much on a successful one.

Creatures standing within water, or that are otherwise wet, have disadvantage on the saving throw.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.