Join Ash as he wins it all and becomes a Pokémon Master in this illustrated chapter book!The final volume in a trilogy that follows Ash in his historic quest to be crowned world champion! Join Ash and his Pokémon in their final battles of the World Coronation Series tournament. Now in the Master Class, Ash makes it through the semifinals and engages in an epic final battle with Leon, the reigning champion who originally inspired Ash to enter the tournament. Their battle twists, turns, and ultimately satisfies-Ash wins!