Blood Bullet

Injuring yourself, you draw forth your own blood as magical ammunition. As a part of casting this spell, you take 3d4+2 slashing or piercing damage (your choice). If this spell is disrupted by Counterspell or fails for any other reason before you make any attacks, you do not take this damage. Using your blood (or whatever life force you have), you create a number of bullets equal to half the initial damage you took (rounded up). You may make a ranged spell attack against a target you can see within 120ft. of you for every bullet you created. On a hit, the target takes 1d12 force damage.

At Higher Levels. When you cast this spell using a slot of 4rd level or higher, you take an additional 1d4 damage when you cast the spell for every level you cast this spell above 3rd.