Bone Shrapnel

With immense control you break the bones in your forearm or leg, shooting them from beneath your skin, piercing creatures before you. The caster takes 1d6 piercing damage per limb and each limb used to cast the spell becomes Shattered. You can sacrifice more than one limb in a single turn in order to increase damage output and range. Each new limb added increases the range of the spell by 5ft.

Creatures standing within the targeted 45 degree, 15ft cone take 4d4 piercing damage on a failed Dex Save equal to the caster's Spell Save DC