Despair

Choose one creature within range. That creature must make a WIS save. On a success, they have disadvantage on their next attack. On a failure, they have disadvantage on all rolls, automatically fail saving throws, and stop any kind of inspiration, e.g. Heroic Inspiration, Bardic Inspiration, etc. If they fail by 5 or more, they minimise all of their damage rolls and take a -5 penalty to every roll. If they fail by 10 or more, they also don’t take any benefit from a short rest, and only gain the benefits of a short rest from a long rest. If they critically fail, they are considered vulnerable to all damage, and fail on all rolls. An affected creature can retake the save at the end of each of their turns, ending the effect on a success.