- "You must try reading my new one. The others have had quite an effect, but this one will drive you absolutely mad."
- ― Sutter Cane when talking about his latest book 'In the Mouth of Madness', (In the Mouth of Madness)
The ability to cause absolute insanity in others. Absolute version of Insanity Inducement.
- Absolute Delirium Inducement
- Meta Madness Inducement
- Omni-Mind Breaking
Users can cause unfathomable madness in absolutely any being regardless of how powerful they are. Driving victims to irreversible and total insanity.
- Fear Inducement
- Death Inducement (in some cases)
- Menacing Presence
- Mental Breakdown
- Sanity Theft/Sanity Transferal
- Torment Inducement
- Will Breaking
- Outer Gods (Cthulhu Mythos)
- The Shadow (Supernatural)
- Dusk (Marvel Comics)
- Red Top-Hat Guy (minus) via; Briefcase
- Sutter Cane (In the Mouth of Madness) via 'In the Mouth of Madness'
- In the Mouth of Madness (In the Mouth of Madness)