Falcon Quills are devices developed and used by the Sumeragi Institute of Human Evolution, functioning effectively as the successor to Glaive technology. They appear to function similarly in basic principle; once activated by its user, the Falcon Quill will force them to undergo a phenomenon known as Weaponization, also referred to as Armed Phenomenon (変身(アームド フェノメノン), Āmudo Fenomenon lit. Metamorphosis), which alters their body structure into a more combat-oriented form, and unleashes their Septima's full potential. They are only entrusted to already powerful Adepts selected to become Falcons.
To employ it, the user draws a circle with the quill while saying "contract", the circle then develops into a multilayered magic-circle of sorts which infuses the user with power, transforming them.
Upon defeat, its user briefly returns to their normal state before bursting into a flurry of feathers, leaving only the Quill behind.
- Rebellio "The Craftsman's Dream"
- Crimm "The Explosive Artiste"
- Stella "The Sudarshana Gravity Well"
- Dystnine "Altair of Vengeance"
- Isola "Falcon★Idol"
- Bakto "The Leonian Tempest"