A necrotic lash of destructive energy forms and whips outward from you in a 30-foot cone. Make a melee spell attack against each creature in the cone. On a hit, a creature takes 6d10 necrotic damage. You can also either pull each creature you hit 20 feet closer to you or knock them prone.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage on a hit increases by 1d10 for each slot level above 6th.