Empathy

As the target looks into the eyes of the caster they are suddenly overcome by weight of conscience behind every evil and uncharitable act they have ever taken.

Target must make a wisdom save. If failed the target is frightened of the caster and gains a level of exhaustion. The target immediately takes another wisdom save and adds another level of exhaustion on a failure and then continue until the target either has 6 levels of exhaustion or passes a save. Each time another evil memory is shown to them (possibly using tarot cards...)

Greater restoration or remove curse (or better) removes all effects. Lesser restoration removes one level of exhaustion.