Bone Shards

You forcefully rip the bones from a nearby corpse and assail your target with a hail of bone shards.  Target one creature or object within range. The target takes 4d6 piercing damage. The target may make a Dexterity saving throw against your spell DC to reduce the damage by half. The corpse that provides the bone shards for this spell is utterly destroyed and may not be used as a material component for this spell a second time.  The bones may come from a medium or small corpse. 

You may cast this spell using higher level spell slots. If you use a second level spell slot you may pull the bones from a large or smaller corpse. Bones from a large corpse increase the spell's damage to 8d6 . A third level spell slot allows you to use the bones from a huge corpse. Bones from a huge corpse increase the spell's damage to 12d6.