Bone Bullet

Bones materialize and  streaks toward a target within range. Make a ranged spell attack against the target. On a hit, the target takes 2d4 necrotic damage immediately. 

This spell's damage increases by 1d4 when you reach 3th level (3d4), 5th level (4d4),7th level (5d4), 9th level (6d4), 11th level (7d4).