This article is about a Pokémon Trading Card Game card which has not yet been officially released in English. As such, this article may contain translated Japanese terms instead of English terms.
Choose an attack of 1 of your opponent's Pokémon. Psy-Dupe copies that attack including its Energy costs (in addition to Psy-Dupe's Energy cost) and anything else required in order to use that attack, such as discarding Energy cards (No matter what type that Pokémon is, Mew's type is still .) If Mew can perform that attack, it does.
In Japan, this card was released as part of a special expansion sheet available at the 7th Next Generation World Hobby Fair held in December 1997. It was later reprinted as one of a selection of cards included in the Pokémon Song Best Collection CD, released on January 1, 1999.
Trivia
As this card was distributed as part of an expansion sheet, this card, along with Pikachu and Mewtwo are often regarded as unofficial additions to the Vending Machine cards collection, dubbed "Series 00".