The power to harden objects. Sub-power of Object Manipulation.
The user can harden objects of all kinds, making them all but invulnerable to blunt force.
- Object Manipulation
- Plastic Manipulation
- Rubber Manipulation
- Fortitude Strengthening
- Self-Hardness Manipulation
- Shikkui Makabe (Boku no Hero Academia)
- Busoshoku/Armament Haki Users (One Piece)
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