Johto's legendaries are coming to your decks! Pokémon TCG Pocket is set to enrich its catalog with a new themed booster entitled Secret Source, available worldwide from August 28, 2025. This content will feature the legendary Pokémon Raikou, Entei and Suicune, from the Pokémon Gold and Silver versions. This new feature, announced by The Pokémon Company, confirms the gradual expansion of the mobile application around the Johto and Hoenn regions, with a selection of new maps.
This new booster is an opportunity for players to discover or rediscover emblematic creatures, in a format adapted to mobile gaming. A trailer has been posted on the official Pokémon YouTube channel to give a first glimpse of the content offered by Secret Source.
The Secret Source booster features several iconic Pokémon from both regions, including the three legendary dogs Raikou, Entei and Suicune. This trio occupies an important place in the history of Pokémon video games, being associated with the Johto universe and its mythological tales.
In addition to these legendary creatures, many Pokémon from Hoenn will complete this expansion. The announced content is aimed both at strategy enthusiasts wishing to diversify their deck, and at collectors wishing to enrich their digital card gallery with visuals specific to this new edition.
The Secret Source expansion is aimed primarily at regular Pokémon TCG Pocket players looking to develop their online battle strategies. The presence of powerful Pokémon such as Raikou, Entei and Suicune is an asset for diversifying confrontations and offering new gameplay mechanics.
It also targets a wider audience, including fans of the Pokémon franchise who wish to rediscover the mythical creatures of previous generations. This update will appeal as much to nostalgic collectors as to new players discovering the application.
Following the release of the Secret Source booster, The Pokémon Company has planned a series of in-game events. Among them, theZoroark Loot Event will take place from September 3 to 13, 2025, offering special promo cards. Bonus Week, scheduled from September 7 to 14, will offer Booster Hourglasses and other rewards to players completing their missions.
A Miracle Deck Event will take place from September 14 to 24, giving access to new cards featuring Ecremeuh and Phanpy, as well as store tickets. Finally, a Mass Appearance of Water-type Pokémon is scheduled between September 25 and October 1, with special emphasis on Water-type cards in rare and bonus draws.
All you have to do now is wait for this booster to arrive!
This page may contain AI-assisted elements, more information here.
