湖の秘密 ( Secret of the Lakes )

Secret of the Lakes is a serene and mysterious Japanese Pokémon TCG expansion that explores the tranquil beauty and hidden power of the Sinnoh region’s sacred lakes. Centered around the Legendary trio Uxie, Mesprit, and Azelf, the set captures themes of knowledge, emotion, and will—the forces that connect all living beings—through graceful artwork filled with shimmering water, soft light, and peaceful natural scenery. Each card evokes a sense of stillness and wisdom, reflecting the quiet strength of Pokémon that dwell in harmony with their surroundings. Secret of the Lakes expands gameplay with new LV.X evolutions and strategic Trainer cards that reward balance, timing, and understanding of the game’s deeper mechanics. With its reflective tone, elegant visuals, and connection to Sinnoh’s mythology, Secret of the Lakes stands as one of the most atmospheric expansions of the Diamond & Pearl era, symbolizing the calm, intelligence, and spiritual depth that lie beneath the surface of the Pokémon world.