Bone Storm

You conjure shards of bone to shoot forth from your hand in a 15-foot cone in front of you. Each creature in a 15-foot cone must make a Dexterity saving throw. A creature takes 4d4 piercing damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d4 for each slot level above 1st and the size of the cone increases by 5 feet for every two levels above the first.