Bone Spear

A spear-length bone projectile is cast towards a creature. Make a ranged spell attack against the target. On a hit, the target takes 3d6 piercing damage, and the target must pass a Constitution Saving Throw or take 1d6 Necrotic damage each turn 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.