Feeblemind

You blast the mind of a creature you can see within range, attempting to shatter its intellect and personality. The target takes 4d6 psychic damage and must make an Intelligence saving throw. On a failure, the creature's Intelligence and Charisma scores become 1. The creature can't cast spells, activate magic items, understand language, or communicate in any intelligible way. It can, however, identify its friends, follow them, and protect them. The creature can repeat the saving throw every 30 days. It can also be cured by *Greater Restoration*, *Heal*, or *Wish*.