Pokemon Season 6 Episode 307 Episode Title:Just One of the Geysers.Episode Description:Ash’s long-awaited rematch with Brawly of the Dewford Gym finally arrives. For the location, Brawly selects a secret sparring area he has hidden on a nearby island. Above and beyond this gym leader’s ability and powerful Pokémon, the battlefield itself presents many unique challenges, most notably a huge geyser that erupts into the air without warning.