Bone Storm

You conjure shards of bone to shoot forth from your hand in a 15-foot cone in front of you. Creatures in the area must make a Dexterity saving throw or take 5d4 piercing damage. At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d4 and the size of the cone increases by 5 feet for each spell slot level above 1st.