Corporate Power Move: Bone Turner

Make a melee spell attack on a target in range. On hit the target takes 6d8 necrotic damage. If this reduces the target to 0 hp, then all of the bones in their body explode outward in a cone of bone 30 feet long. Creatures in range must make a Dexterity save or take 5d8 piercing damage. Reflex save halves. 

If the creature is not reduced to 0 hp after this, they must make a Constitution saving throw. Upon failure they begin to cough up fragments of bones, dealing another 2d8 necrotic damage to them.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage die increase by 1d8 for each slot level above 4th.