Gratos debuts as a minor antagonist in *Battle Spirits Shonen Gekiha Dan*, commanding a red-attribute deck that channels aggressive tactics like destruction and direct assaults. In *Battle Spirits Brave*, brainwashing forces him into service under Duc the Hooligan General, positioning him as The Dragon within the enemy ranks. In this role, Gratos enforces Duc's decrees and confronts protagonists battling to halt Earth's reset. His arc concludes definitively in *Brave* when he suffers a fatal impalement. This death advances the narrative, as his essence fuels the creation of a formidable Battle Spirits card. Merchandise reinforces his connection to the "Evil Flame" magic card through reprinted illustrations featuring Gratos on this red spell.