Scotia, identified as Stoica in English adaptations, functions as the Aquos brawler in Gundalia's elite military force, the Twelve Orders. He displays a documented split personality, unpredictably alternating between a sociable, lighthearted "angel" mode and a ruthlessly cruel "devil" mode. This instability fuels extreme violence during combat, often disregarding ally and enemy safety in his destructive state.

As one of Emperor Barodius's most loyal operatives, Scotia's allegiance stems from both genuine devotion and self-preservation. He harbors suspicion toward fellow Orders members, particularly Gill, and actively undermines them for strategic gain. Notably, he transmitted Gill's confession of murdering Kazarina and Airzel's complicity in the cover-up directly to Barodius, resulting in their executions, which he witnessed without remorse.

His primary Bakugan partner, Aquos Lythirus, utilizes Battle Gear Razoid. Their alliance reflects shared erratic personalities and deceptive battle tactics, complicating opponents' predictions. Combat achievements include underwater proficiency against Marucho Marukura, showcasing unexplained abilities to breathe and speak submerged. He also deployed the "Death End Merman" Ability Card, deliberately flooding an arena to drown adversaries Fabia Sheen and Nurzak while forcing allies Kazarina, Lena, Jesse, and Zenet into retreat.

Throughout Gundalia's invasion of Neathia, Scotia engaged in pivotal battles against the Battle Brawlers and Castle Knights. Key confrontations include defeating Marucho in a rematch and ambushing Shun Kazami during a rescue operation. His final actions occurred during the assault on Neathia to secure the Sacred Orb. While aiding Barodius and Phantom Dharak by blinding Dragonoid Colossus with Lythirus, Dharak betrayed and killed both during its attack.

Distinct traits include being the Twelve Orders' youngest member and possessing unique hair coloration. His legacy intertwines psychological instability, internal treachery, and ultimate betrayal.