- Brain Reduction
User can drain the thinking capabilities of oneself and others beyond the norm, not by decreasing intelligence, but instead by reducing the capability to use the already existing abilities to their maximum effect. This includes stupidity or becoming comatose.
- Brain Manipulation
- Healing Coma
- Mental Manipulation
- Mental Inducement
- Neuro-Psychic Knowledge
- Users of Psychic Shield may be immune or highly resistant.
- Brain Bugs (Starship Troopers)
- Glory (Buffy the Vampire Slayer)
- Enzo Matrix (Reboot)
- Daleks (Doctor Who)
- Nightmares (Arkwell Academy trilogy); via Dream Absorption
- Jimmy Neutron's Brain Drain Helmet (Jimmy Neutron)
- Division 12's Brain Drain Machine (Bleach)