Pokemon Season 10 Episode 472 Episode Title:When Pokémon Worlds Collide!.Episode Description:Ash continues his search for Pikachu. While searching, he is challenged to a single-elimination three-on-three Pokémon battle by a new rival, Paul. Dawn, Piplup and Pikachu soon is helped by Ash, his Aipom and Starly. Then, Dawn and Ash become fast friends when they headed back to the Pokémon Lab to get a package that was sent from Ash's mother, which turns out to be a package of clothes. Ash, Dawn and Brock, now being reunited with Pikachu, all begin to head to Jubilife City where Dawn meets Paul for the first time, in which he challenges Ash again. The battle ends in a tie, yet Ash feels like he lost.