Dark Bolt

A bolt of purple energy blasts out from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 1d8+2 necrotic damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.