Bakugan Battle Brawlers Episode 51 English Dubbed Episode Title:The Final Brawl.Episode Description:While the Brawlers are distracted fighting against Centorrior and Druman, Naga goes after Wavern and the Infinity Core that she possesses. Dan leads the Brawlers to defeat the two hybrid Bakugan and runs off to battle Naga himself, but when Dan arrives, he finds Wavern trapped with no other choice but to give the core to her brother. Wavern tells Drago that the only way for him to win the battle is for him to kill her and take the Infinity Core from her. Drago does so, knowing that it is the only way to defeat Naga and to save Vestroia. When the battle continues with Drago losing more positive power from the Infinity Core, Drago becomes full of rage and anger of losing his beloved Wavern and evolves into the infinite bakugan, Infinity Dragonoid.