Disrupt Life

You point at a creature you can see within range. The target must make a Constitution saving throw versus your spell DC, taking 14 (4d6) necrotic damage on a success or failure. On a failure, the creature loses the ability to regain hit points in any way; instead, if any healing is directed at them, they take necrotic damage equal to that amount. A Lesser Restoration, Remove Curse, Greater Restoration or similar spell can remove this effect. The effect lasts until the target takes a long rest otherwise. This spell has no effect on constructs or undead.