Wind Shear

A flurry of blades of air erupts from your hands. Each creature in a 60-foot cone must make a Dexterity saving throw. A creature takes 10d8 slashing damage on a failed save, or half as much damage on a successful one.

A creature killed by this spell is cut in half

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the damage increases by 1d8 for each slot level above 6th.