Hakutai Forest! The Minomutchi Evolution Plan!! : Season 10 Episode 30

On their way through the Eterna Forest and nearing Ash's next Gym battle challenge, our Heroes discover a young woman named Cheryl who calls herself a 'Treasure Hunter' - one in a long line of Treasure Hunters in her family. She is in search of a place called the Amber Castle, which is reputed to hold within it the legendary Enchanted Honey - a honey much more powerful than regular honey. In order to accomplish this, Cheryl needs to capture a male Burmy and evolve it into a Mothim, which has the power to guide her to the Amber Castle and her sought - after treasure. ...