Teeth Fireball

A bright streak flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into an explosion of teeth. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 8d6 piercing damage on a failed save, or half as much damage on a successful one.

The teeth rip out of the flesh of those they inflicted (Failed saves) and fly back to the user. Those with teeth wounds will take 1d4 damage for the next 3 turns due to minor blood loss. 

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.