The EX Crystal Guardians expansion, launched in August 2006, marks a turning point in the history of English Pokémon cards. The fourteenth installment of the EX series, this collection of 198 cards stands out for its unique theme centered on a mysterious island with special-powered crystals. It represents the last appearance of Delta Species Pokémon with dual types, thus introducing a transition to new concepts. Featuring Pokémon from the Hoenn region, EX Crystal Guardians enriches the gaming experience with its Pokémon-ex and special cards. The three associated theme decks - Earth Shower, Green Cyclone, and Storm Surge - offer collectors and players a complete immersion in this fascinating crystalline universe.