Bardiche, an Intelligent Device crafted by Rynith for Fate Testarossa, operates with a male persona and Midchildan magic protocols. Its Standby Form manifests as a golden triangular gem, transforming into combat configurations: a bearded axe in Device Form and a scythe-like structure with a curved energy blade in Scythe Form. The Sealing Form deploys spear-like energy fins for containment spells, later reimagined in cinematic continuities as Glaive Form—a triple-finned design with expanded combat functions.

Damaged in battle, Bardiche received upgrades integrating a Belkan revolver cartridge system, rebranding it as Bardiche Assault. This iteration introduced Haken Form, enhanced by auxiliary fin blades, and Zanber Form, which projects a massive energy blade for high-impact strikes. Subsequent modifications yielded Riot Blade and Riot Zanber, specializing in close-quarters engagements and aerial suppression.

During *Reflection*'s events, Bardiche Assault evolved into Bardiche Hornet via the "Hornet" program cartridge. This urgent overhaul restricted active forms to Straight Saber Form—a broad-hilted energy sword—and Javelin Form, a polearm engineered for long-range artillery.

In *Force*'s continuity, Bardiche advanced to experimental fifth-generation status, enabling mana-to-physical energy conversion to neutralize anti-magic threats. Its epithet, "Battleaxe of Flash," derives from Rynith’s initial designation, underscoring its role as a multipurpose combat instrument.

Though named after a medieval polearm, Bardiche transcends melee limitations, integrating ranged spellcasting and dimensional energy manipulation. Its iterative development across timelines reflects technological adaptation and user-centric evolution, preserving its core identity while assimilating advanced systems for heightened efficacy.