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BW103 : Curtain Up, Unova League!
Best Wishes series
BW105 : Lost at the League!
Mission: Defeat Your Rival!
BW104   EP761
Fierce Fighting! Win Out in the Rival Battle!!
First broadcast
Japan November 29, 2012
United States March 16, 2013
English themes
Opening It's Always You and Me
Japanese themes
Opening やじるしになって!
Ending みてみて☆こっちっち
Animation Team Kato
Screenplay 武上純希 Junki Takegami
Storyboard 牧野吉高 Yoshitaka Makino
Assistant director 吉村文宏 Fumihiro Yoshimura
Animation director 篠原隆 Takashi Shinohara
No additional credits are available at this time.

Mission: Defeat Your Rival! (Japanese: 熱闘!ライバルバトルを勝ちぬけ!! Fierce Fighting! Win Out in the Rival Battle!!) is the 104th episode of the Best Wishes series, and the 761st episode of the Pokémon anime. It first aired in Japan on November 29, 2012 and in the United States on March 16, 2013.

201 Spoiler warning: this article may contain major plot or ending details. 201


The battle between Trip and Ash continues... Pikachu manages to get up after getting hit by Serperior's Dragon Tail. Before Pikachu could have retaliated, Serperior hits it with Energy Ball and Dragon Tail. Then Serperior uses Wrap and Pikachu is in a tight squeeze. Ash calls out for a Thunderbolt, but Serperior merely passes the electricity underground by burying his tail and using it as a lightning rod.

Ash yells to him, and all the memories of his previous battles come on his mind. Ash quickly hatches a new plan. As Pikachu's tail was outside of Serperior's grip, he commands an Iron Tail which allows him to break free. Once more, the attack is repeated, but Serperior's Dragon Tail once again causes Pikachu to flinch. Ash, to Trip's sheer astonishment, orders Pikachu to gather electricity on his tail and he uses a unique Electro Ball and Iron Tail combo. Serperior counters with Dragon Tail, and a large explosion occurs. When the smoke clears, Pikachu collapses onto the ground, but manages to stand up within a few seconds with faltering steps. Serperior, however, is unconscious, and Trip has been defeated. Their rivalry ends, and friendship blooms its first bud.

With Trip and Ash's battle done, the League goes on to the first round. Cameron is matched up with Bianca, and their battle begins in earnest. Bianca starts up with her Escavalier, while Cameron goes on with Samurott. Escavalier uses Iron Defense several times, but Samurott still manages to beat it. Next up, Bianca sends out Emboar. Cameron thinks that he will win because of type advantage, but Bianca surprises everyone by using Attract on Samurott to infatuate it, and then knocks it out. Now one on one, Cameron sends out his Riolu. Riolu displays quite a battling prowess, and manages to turn hostile situations into an advantage. Riolu finally knocks out Emboar with a Vacuum Wave, giving Cameron the win, and knocking Bianca out of the Vertress Conference.

Major events

  • Ash defeats Trip, eliminating the latter from the tournament.
  • Ash and Trip end their rivalry and become friends.
  • Virgil defeats Ultimo, advancing to the next round.
  • Bianca defeats Mikael, advancing to the next round.
  • Cameron defeats Kendrick, advancing to the next round.
  • Cameron defeats Bianca, eliminating the latter from the tournament.
For a list of all major events in the anime, please see the timeline of events.


Pokémon debuts


Dare da?



Who's That Pokémon?

Who's That Pokémon?: Vaporeon


Preview image from the Episode N teaser


Woobat's blue colored wings
  • In one of the crowd shots, Woobat's wings are colored blue like its body, instead of black.

Dub edits

In other languages

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BW103 : Curtain Up, Unova League!
Best Wishes series
BW105 : Lost at the League!
Project Anime logo.png This episode article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.