Pokémon S12E23 - A Pyramiding Rage!

At the Snowpoint City Pokémon Center, Ash and friends run into Paul, who has come to town to challenge Candice. Surprisingly Paul's brother Reggie also arrives at the center. To add to the surprises, Pyramid King Brandon arrives in Snowpoint City. After Ash and Reggie talk about their great battles in Kanto, Paul becomes upset and challenges Brandon to a battle.