As two actions, you blast the mind of a creature that you can touch or see within 20 meters, shattering its intellect and personality. The creature must make a Will saving throw. If the creature has no moisture in its body, the spell has no effect on it.
On a failure, it takes 6d6 psychic damage and the creature’s Intelligence and Charisma become −5. The creature can’t cast spells, activate magic items, understand language, or communicate in any intelligible way. The creature can, however, identify its friends, follow them, and even protect them.
On a critical failure, it takes twice as much damage.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
After 30 days, the creature can repeat its saving throw against this spell. If it succeeds on its saving throw, the spell ends.