Abyss Shriek

Necrotic energy bursts out of the caster's soul, dealing 6d6 necrotic damage and knocking victims back by 10 ft, in a 30ft radius sphere around the caster. On a successful save, victims take half damage and are not knocked back. If the target is directly above the user the save is automatically failed. 

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 2d6 for each slot level above 6th.