Tsukuyomi

You attempt to bind a creature to an illusory realm in which the creature perceives themselves undergoing prolonged torture. For the creature, the torture lasts for 72 hours although the illusion only lasts for 6 seconds in real time. One creature you can see within range must make an Intelligence saving throw. The target succeeds automatically if it is immune to being charmed. On a successful save, the target takes 10d10 psychic damage, and the spell ends. On a failed save, the target takes 10d10 psychic damage, is stunned until the end of its next turn, and takes on 4 levels of exhaustion.