Crimson Bolt

You transmute a drop of blood into a crimson dart and launch it at creatures within range, making a ranged spell attack. On hit, the target takes 1d6 piercing damage and 1d6 necrotic damage.

The piercing and necrotic damage increase by 1d6 at 5th level (2d6), 11th level (3d6), and 17th level (4d6). The blood consumed also increases when the damage increases at 5th (2), 11th (3), and 17th (4).