02:39Pokémon: Diamond and PearlSeries 12 - Galactic BattlesLeading a Stray!CBBC Duration: 20 minutes Mon 13th May 2024, 02:39 on BBC Pokemon ChannelAvailable for 2 monthsWatch nowAsh discovers an ailing Wailmer with a big problem! Show more GenresChildren'sBrandPokémon: Diamond and PearlSeriesPokémon: Diamond and Pearl: Series 12 - Galactic Battles Source: BBC Online