You point your finger, and dark energy washes over a target you can see within range. The target must make a Constitution saving throw, taking 4d6 necrotic damage on a failed save, or half as much damage on a successful save.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the target takes an additional 2d6 necrotic damage for every spell level above 1st.