Bone Spear

You create a spear of bone and fling it at one creature within range. Make a ranged spell attack against the target. On a hit, the target takes 4d8 necrotic damage. Hit or miss, the bone then splinters. The target and each creature within 15 feet cone behind the target must succeed on a Dexterity saving throw or take 2d6 piercing damage.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the Piercing damage increases by 2d6 for each slot level above 3rd.