A Royale Pain - S4.E10

Shun has been battling far more frequently since taking the position of leader of the Brawlers, and it's starting to take it's toll on him. However, he shows no signs of backing down when he enters a battle royale. Things get tough when up against Robin from Team Anubias and Soon from Team Sellon when Taylean suddenly spawns a Mechtogan, Silent Strike. Shun tries his best to defeat it and is rescued by Rafe and Paige. After Silent Strike flees, Rafe and Paige reveal that they are a Neathian and Gundalian, respectively. They have learned that the Mechtogans are the offspring of chaos when there is a lack of sync between a brawler and their Bakugan and Princess Fabia has sent them to help the Brawlers. Shun, however, refuses the help and leaves while Marucho's father asks him to quit the Brawlers.