Twilight Surge

With your palm open and your fingers held together, you call forth the darkness within you. A shadow is cast from your body, covering the area in a 15-foot cone in front of you. Each creature in the 15-foot cone is engulved by the shadow and must make a Constitution saving throw. A creature takes 2d8 Necrotic damage on a failed save, or half as much damage on a successful one.

The shadow snuffs out any non-magical light source it engulves.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.