Bloodletting

When cast upon a creature you can see, the creature must make a Constitution saving throw. If it fails, the creature becomes vulnerable to slashing damage. In addition, the creature suffers an additional 2d4 bleed damage at the end of each of its turns for the spell’s duration. If the creature is healed for any amount, the spell’s duration ends, or if the creature reaches 0 hp, the bleed effect stops.