Agitate Wounds

You choose one creature that you see within range that is not a full hit points and force it to make a Constitution Saving Throw. On a failure, that creature's wounds open and bleed profusely; it takes 2d6 necrotic damage from blood loss.

On each subsequent turn, the creature must make a new saving throw and takes damage equal to your spellcasting modifier on failure. This effect ends if the creature succeeds at three saving throws or is healed through some manner.