Black Serpent

You touch the ground and create a serpent of black flame that slithers towards a target you can see within range. The target must make a dexterity saving throw, and it takes 4d8 fire and 4d8 necrotic damage on a failed save, or half as much on a successful one. This spell can climb and go around obstacles and can hit targets up to 30 feet in the air.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 fire and 1d8 necrotic for every two slot levels above 3rd.