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BW062 : Crisis at Chargestone Cave!
Best Wishes series
BW064 : Explorers of the Hero's Ruin!
Evolution Exchange Excitement!
BW063   EP720
Trade Evolution! Chevargo and Agilder!!
First broadcast
Japan January 19, 2012
United States May 26, 2012
English themes
Opening Rival Destinies
Japanese themes
Opening ベストウイッシュ!
Ending 七色アーチ
Animation Team Kato
Screenplay 武上純希 Junki Takegami
Storyboard 浅田裕二 Yūji Asada
Assistant director 川田武範 Takenori Kawada
Animation director 岩根雅明 Masaaki Iwane
Additional credits

Evolution Exchange Excitement! (Japanese: 通信交換進化!シュバルゴとアギルダー!! Trade Evolution! Chevargo and Agilder!!) is the 63rd episode of the Best Wishes series, and the 720th episode of the Pokémon anime. It first aired in Japan on January 19, 2012 and in the United States on May 26, 2012.

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


Ash, his friends and Professor Juniper head towards the base camp where they will trade. Professor Juniper shows them the trading machine and tells Bianca that she wants to have a Pokémon battle to gather data on Karrablast and Shelmet first. Ash scans Karrablast and Shelmet with his Pokédex. Axew goes up to Shelmet and makes a scary face which scares the Shelmet, Iris tells Axew to not scare Shelmet and then apologizes to Shelmet for scaring it. Bianca commands Shelmet to use Acid, but Shelmet is too scared of Karrablast to move, to which Bianca explains that her Shelmet is very shy. Professor Juniper has Karrablast use Peck on Shelmet, while Bianca has Shelmet use Protect to block it and Peck does not break through. Karrablast uses Take Down while Shelmet uses Protect again which blocks the attack once again. Shelmet finally appears from its shell and is ready to battle. All of a sudden the machine that is recording the data of the battle malfunctions and they have to stop the battle.

Everyone leaves to check on the trading machine, but it is malfunctioning as well. Bianca does not take the news very well and panics. Everyone tells her that they will solve the problem to fix the machine. They decide that they should check what is going on inside of the Chargestone Cave. Everyone heads inside of the Chargestone Cave, while Professor Juniper's assistant uses an electricity recording machine to check where the levels are too high or to low. Ash scans some wild Klink with his Pokédex, while the assistant explains that they are not the cause of the disturbance. At a dead end in the cave, they run into a Klinklang which appears to be in distress and is giving off excessive amounts of electricity. Ash scans Klinklang with his Pokédex, and then an electric beam almost hits Ash. Professor Juniper brings out a sound-making device that she uses to calm the Klinklang down. Professor Juniper explains that the Klink and Klinklang really like the sound it makes, she walks up to the Klinklang and removes a pen from one of its gears that it was stuck in. Klinklang starts acting normally again, and the electricity is no longer causing a disturbance in the cave.

Everyone heads back to the trading machine. Bianca brings out Shelmet and tells it that it will be a good and strong Pokémon for Professor Juniper. They begin the trade with Karrablast and Shelmet. Professor Juniper tells Bianca that they want to collect and record data of the evolution and a battle between them. Ash scans Accelgor and Escavalier when they are brought out and evolve. Escavalier doesn't look pleased with its new Trainer and begins to chase Bianca around. Professor Juniper has Accelgor use Substitute so that Bianca can recall Escavalier to its Poké Ball while its back is turned. Bianca says that she is worried about whether she can handle Escavalier. Professor Juniper explains that Escavalier retained its aggressive battle spirit along with Shelmet's shell. Professor Juniper suggests that they have a Double Battle with Professor Juniper and Bianca facing Cilan and Ash. Crustle and Boldore are brought out to battle Accelgor and Escavalier. Escavalier glares back at Bianca prior to the battle starting which scares Bianca. Boldore uses Rock Smash on Escavalier and Accelgor followed by Crustle using X-Scissor on Accelgor which misses. Accelgor hits Crustle with Quick Attack. Bianca tries to command Escavalier, but it does what it wants instead. Everyone thought it was Bianca who was commanding Escavalier to attack. Cilan and Ash decide to have their Pokémon go after Escavalier and land a few hits. Accelgor uses Substitute to protect Escavalier. Escavalier finally calms down, but Accelgor has taken heavy damage from using Substitute. Accelgor uses Recover to regain its strength while Escavalier blocks Flash Cannon and Rock Slide with its Iron Defense. Accelgor and Escavalier land attacks to injure Crustle and Boldore. While they are down, Accelgor and Escavalier both use Hyper Beam which knocks out Boldore. Cilan has Crustle use Shell Smash and two Rock Wreckers to knock out Accelgor and Escavalier.

Bianca was finally able to command Escavalier. Professor Juniper's assistant tells them that all of the data they needed was recorded. Everyone hears something coming from the Chargestone Cave, and Cedric Juniper stumbles out and collapses. Professor Juniper recognizes him as her father.

Major events

For a list of all major events in the anime, please see the timeline of events.



Pokémon debuts

TV episode debuts



Dare da?


Who's That Pokémon?

Who's That Pokémon?: Karrablast (U.S. and international) Shelmet (Japan)


  • Professor Oak's Pokémon Live Caster: Duosion
  • This is the first time the anime has featured an evolution by trading.
  • This is the third episode in a row to feature an evolution of a main or recurring character's Pokémon, with Ash's Roggenrola and Cilan's Dwebble evolving in the previous two episodes. It is also the second episode in a row to feature an evolution of a main or recurring character's Bug-type Pokémon, after Cilan's Crustle.
  • This episode once held the overall record for the most amount of Pokédex entries in a single episode, that being six. The six Pokémon were Shelmet, Karrablast, Klink, Klinklang, Accelgor and Escavalier. The record was later broken in BW102.
  • This episode features the fifth on-screen trade.


  • Right before Professor Juniper recalls Karrablast to its Poké Ball for the trade, the light blue triangle on its forehead is colored gray like its face.
  • It is known that when Karrablast and Shelmet are traded, Shelmet's shell is attatched to Karrablast. Instead, in the episode, Shelmet evolves normally, then Karrablast does the same, both at least several minutes after the trade.

Dub edits

In other languages

BW062 : Crisis at Chargestone Cave!
Best Wishes series
BW064 : Explorers of the Hero's Ruin!
Project Anime logo.png This episode article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.