Description
Leos Gideon emerges as the primary antagonist in the Battle Spirits Saga Brave narrative, spearheading Cardinal Sign. This human supremacist organization relentlessly pursues Mazoku subjugation and human dominance through violent means, executing terrorist attacks and assassination attempts against figures like Barone and Clackey Ray.

A decade after Dan Bashin's sacrifice, Gideon's faction secured the vanished 12 Zodiac X-Rares. He wielded these potent cards as instruments for Cardinal Sign's agenda, strategically distributing specific spirits among his followers; for instance, he granted the Cancer Zodiac X-Rare (The CancerBushin Cancerd) to Gratos for combat against Barone. Gideon personally commanded the Scorpio Zodiac X-Rare (The ScorpioKnight Scor-Spear) during his direct clash with Dan Bashin.

Gideon's crusade stemmed from an unshakeable conviction: humanity's future demanded Mazoku eradication and a new world order under human control. He articulated this vision to Dan during their final battle, framing his actions as essential for human preservation and supremacy. This confrontation culminated in the activation of "The Clash King's Miracle," a mysterious card manifesting within the core bearers' decks, which played the pivotal role in disrupting Gideon's plans.