Ash, Barry and Brock enter the Twinleaf Festival’s main event, a battle tournament. The winner is offered a chance to battle Palmer of the Sinnoh Battle Frontier. Ash wins the tournament and battles Palmer, who chooses his Rhyperior and Ash chooses Grotle. Palmer comes up with his strategies and almost defeats Grotle. Even after Grotle boosts up by swallowing its own Energy Ball, Rhyperior defeats it. Ash is awarded the trophy for winning the Twinleaf Town Battle Tournament.