Bloodshot

Blood is what brings us life, and you've learned how to use that to your advantage. Make a ranged spell attack. On a success, blood shoots from your wound, making contact with your target, and dealing 1d6 Necrotic damage. Additionally, you take 1d4 Necrotic damage. 

At Later Levels: The die amount for both effects increases by one at Level 3, Level 9, Level 15, and Level 20.