I am huge fan of Pokémon games but I haven't watched the anime that much. As lots of guys here know that Master ball is the ball which catches Pokémon without failing. Today I ran into an argument with a friend of mine regarding the Master ball. He said that the Master ball had failed one time in the anime, but I disagreed that it can never happen. But he said that he had watched it once but can't recall now. Had the Master ball really failed or not?

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    You should note that the mechanics of the games are generally consistent whereas the anime treats the mechanics as subservient to the plot. The fact that the games work a certain way is never going to be a winning argument about anything in the anime.
    – Nacht
    Commented Feb 26, 2017 at 22:55
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    Also the master ball will fail in the games if you try to catch a pokémon that is owned by another trainer
    – John D
    Commented Oct 8, 2017 at 18:39

1 Answer 1


In Episode 35, titled Whiscash and Ash, Season 7 of the Pokemon series, a Whiscash swallows a Master ball thrown at it. This was widely interpreted as a Master ball fail.

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Episode summary: Whiscash and Ash

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    Oh that's why its success is written 99.6% due to this failure. I don't get about which Pokemon season. what is season 7 's name? Commented Feb 26, 2017 at 16:39
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    Season 7 of the Pokémon anime: Advanced Challenge Commented Feb 26, 2017 at 16:41
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    Well, had the ball been thrown correctly and the execution was fair, the Whiscash can be caught with ease. So it wasn't a fail by the Master ball, but rather a good counter by the Whiscash. I mean, come on, you can catch legendaries with that thing xD Commented Feb 26, 2017 at 16:48

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