The ability to grow a weapon onto arms using energy or surrounding matter
. Sub-power of Organic Constructs
- Dermal Weaponry
- Limb Morphing
- Weaponized limbs
User can transform parts of their body to form a weapon of their choice onto their hands and forearms, possibly their biceps, triceps, and shoulders.
- May only be able to use one weapon at a time.
- May slow down from the weight of the weapons.
The Flat Sisters (Marchen Awakens Romance) can change their hands into blades with the Ghost ÄRM, Scalpel.
General (Marchen Awakens Romance) can change his hand into a weapon depending on the side Pause's Ghost ÄRM, Verfile lands on.
Sarah Band (Marchen Awakens Romance) possess a Ghost ÄRM that turns her hand into a scythe.
With his Nature ÄRM, Seed Cannon, Weasel (Marchen Awakens Romance) can turn his hand into wooden cannons that shoot explosive vegetables.
Franklin (Hunter x Hunter)
A walking arsenal, Franky (One Piece) houses various forms of artillery weaponry within his arms like his Weapons Left, a powerful machine gun...
Baby 5 (One Piece) can change her hands into any weapon due to her Buki Buki no Mi powers.
As a Parasite, Migi (Parasyte) can change and shapeshift into various forms of bladed weaponry.
James Heller (Prototype 2) is a notable user of this ability.
Kevin 11 (Ben 10) possesses Diamondhead' crystal blade arm.
Diamondhead (Ben 10) with sharp hands shooting crystals.
Ultimate Kevin (Ben 10: Ultimate Alien) possesses Diamondhead's metamorphic arm.