Anemic Infusion

You infuse a weapon you touch with a malicious hunger, and cause it to thin the blood of an enemy. When a creature is hit with an attack using this enchanted weapon, they become wounded. At the start of each of the wounded creature’s turns, it takes 1d8 necrotic damage for each time you’ve wounded it, and it may then make a Constitution saving throw against your spell save DC, ending the effect of all such wounds on itself on a success. Additionally, a wounded creature may staunch the bleeding as an action, ending the effect of such wounds on it on a success.