Corruptor's Blast

A blast of shadow flame erupts from your hands. Each creature in a 30-foot cone must make a Dexterity saving throw. A creature takes 2d6 fire or necrotic damage per charge used with this ability on a failed save, or half as much damage on a successful one.

If no charges remain the ability deals 1d6 fire or necrotic damage on a failed save, or half as much on a successful one.

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.