SFS Standard Never Mind [two-actions] Spell 6

Traditions arcane, occult
Range 30 feet
Targets 1 creature
Defense Will
Duration varies

You drastically reduce the target's mental faculties. The target must attempt a Will save. The effects of this curse can be removed only through effects that target curses.
Critical SuccessThe target is unaffected.
SuccessThe target is stupefied 2 for 1 round.
FailureThe target is stupefied 4 with an unlimited duration.
Critical FailureThe target's intellect is permanently reduced below that of an animal, and it treats its Charisma, Intelligence, and Wisdom modifiers as –5. It loses all class abilities that require mental faculties, including all spellcasting. If the target is a PC, they become an NPC under the GM's control.