Using Serena for support, the two of them made their way through the hotel, up the elevator, and towards their room. After a two-and-a-half-hour long battle against the fourth and final member of the Sinnoh Elite Four, Lucian, he had managed to come out victorious after managing to defeat Lucian's final Pokemon Mega Gallade. That was only accomplished through the use of Synchronization with Greninja, where their thoughts, hearts, and feelings synchronized with each other to activate a power that had the ability to stand up to that of Mega Evolution. However, using that power meant that he wound up sharing whatever damage and pain Greninja felt during battle. And after four days of battling and four days of using Synchronization against each Elite Four members ace Pokemon that could Mega Evolve, his mind and body were exhausted. Arriving and entering their room Serena helped him to the bedroom where he collapsed face down into the soft silken sheets.