Drago, originally named Salamander, serves as Dan Kuso's partner Bakugan and the series' central protagonist. As a Dragonoid, he descends directly from the Genesis Dragonoid, one of the first Bakugan created by Code Eve. Initially ferocious and hostile toward humans, Drago's temperament softened after bonding with Dan, though he retained an impatient and hot-headed streak. His personality embodies that of an honorable knight, prioritizing justice, self-sacrifice for the greater good, and a pacifist disdain for meaningless or selfish conflicts. He harbors deep hatred for Bakugan corrupted by power lust, like Naga or Viper Helios, yet befriended former adversaries such as Hydranoid and Betadron after their reform. His relationship with Wavern, a non-Pyrus Bakugan, profoundly shaped him; they fell in love during their first meeting in Vestroia. Following Wavern's death in the first season, Drago honored her memory, her spirit remaining tethered to him through the Infinity Core to offer guidance during doubt. Her pet name for him, "Dragoruny," symbolized their bond. Drago underwent multiple evolutions, each enhancing his abilities and altering his form. As base Dragonoid, he wielded fire attacks like Fire Tornado and Boosted Dragon. He evolved into Delta Dragonoid during a battle with Julio, Chan Lee, and Klaus, gaining increased power (450 Gs) and new abilities such as D-Strike Attack. Further evolution into Ultimate Dragonoid (550 Gs) occurred after Dan defeated Shun, unlocking capabilities like Ultimate Dragon, nullifying opponent Gate Cards. His most powerful early form, Infinity Dragonoid, emerged when Wavern gifted him the Infinity Core, elevating his power to 1000 Gs and granting access to all six elemental attributes plus the combined Dextra Attack. In *New Vestroia*, Drago reappeared as Neo Dragonoid after the Legendary Soldiers of Vestroia separated him from the Perfect Core to create a physical form. This downgrade reduced his base power (400 Gs) but introduced new Perfect Core abilities like Strike Dragon and Dragon Contender. His Forbidden Abilities, including Vestroia X and Neo Legend X, allowed attribute manipulation and massive power boosts under specific conditions. Against Spectra's Maxus Helios, Drago combined with mechanical Bakugan like Spyderfencer to form Maxus Dragonoid. Later, after absorbing energy from the Six Ancient Warriors via the BT System, he evolved into Cross Dragonoid and ultimately Helix Dragonoid, integrating their DNA and abilities. Drago's role expanded in *New Vestroia* as leader within the Bakugan Battle Brawlers Resistance opposing the Vestal invasion. He coordinated efforts with Dan, Marucho, Shun, and Vestal allies like Mira Fermin to free captured Bakugan and dismantle Vestal control. His strategies leveraged evolving forms and Perfect Core abilities to counter Vexos threats like Zenoheld and Spectra. His broader capabilities included reactive evolution, space survival, and resistance to elemental and fate manipulation. With the Infinity Core, he gained reality-warping powers, such as merging dimensional attributes or purifying evil energy. Post-Perfect Core separation, he developed immunities to elemental attacks via Neo Legend X. As Helix Dragonoid, he accessed combined powers of the Six Ancient Warriors, including paralysis inducement and energy projection. Drago's lineage holds significance; the Genesis Dragonoid's "Ultimate Warrior Gene" enabled his rapid adaptations. His early Vestroia experiences involved defending against threats like Naga, whose Silence Core he later destroyed, absorbing its attributes. His character arc centered on protecting Vestroia and Earth while navigating loss, leadership, and the ethical complexities of power.