Cleave

You channel the malevolent energy around you into a devastating cleave. When you cast this spell, all creatures in a 30-foot cone originating from you must make a Dexterity saving throw. On a failed save, a target takes 6d8 necrotic damage and is pushed back 10 feet away from you. On a successful save, the target takes half damage and isn't pushed.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd.