Cruciatus Curse

You inflict the target with an excruciating pain, that matches no other. The target must make a wisdom saving throw (the roll is made at advantage if you are any good alignment). On a failed save, the target takes 2d8 psychic damage, is paralyzed, and suffers  one effect from short term madness. The target must continue to make the saving throws at the beginning of each of its turns. On each failed save, the target suffers from an additional short term madness effect, and is  paralyzed. After 1d4 plus the targets wisdom modifier failed saves, the target suffers from long term madness and its intelligence modifier is permanently reduced by the number of failed saves and continues to reduce after each failed save. On a successful save, the target takes 2d8 psychic damage and the spell ends.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st. When you use a 9th level spell slot, you can target up to 3 creatures.