- "When you sacrifice, you must cut yourself from Humanity..."
- ― Ubik to Griffith (Berserk)
- "Demon Sunday school story? God prefers humans to angels. Lucifer gets jealous. And then he gets creative, and he tempts and twists a human soul into the very first demon."
- ― Ruby to Sam Winchester (Supernatural)
- Demon Form (oneself only)
- Demonic Inducement/Transformation
The user can transform oneself or others into demons or demonic hybrids granting them demonic abilities and/or traits.
- Corruption Inducement
- Dark Energy Manipulation
- Demon Creation
- Demon Physiology
- Demonic Arm
- Demonic Force Manipulation
- Demon Soul
- Demonic Empowerment
- Malefic Force Manipulation
- May be limited to certain type of demons.
- Process may be extremely painful.
- May be irreversible.
- Can be undone with Conversion Negation.
- Weak against Demon Manipulation.
- Won't work on users with Conversion Immunity.
- Nightosphere amulet (Adventure Time)
- Behelits (Berserk)
- Crimson Behelit (Berserk); used to transform its bearer into a God Hand
- Demon Swords/Evil Swords (Dog Days)
- Evil Pieces (Highschool DxD)
- Demon Chi (Jackie Chan Adventures)
- Infernal Cup (The Shadowhunter Chronicles)
- Martinet's concoction (Shingeki no Bahamut)
- Mark of Cain (Supernatural)
- Book of Demons (Valkyrie Crusade)
- Shadow Sword (Yu Yu Hakusho)
- Red Gnosis (The Legend of Heroes: Zero no Kiseki/Ao no Kiseki)
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