Delta Species

Delta Species is the eleventh main set of the EX era and the set that introduced the δ Pokémon mechanic, cards with an unusual elemental type. The set has 114 cards, including 113 numbered cards and the secret Azumarill 114/113, and it is most notable for Flareon ex, Jolteon ex, Vaporeon ex and the Gold Star Groudon, Kyogre and Metagross. The Holon theme is underlined by the Holon Mentor, Holon Transceiver and Holon Research Tower cards, and cards 1-18 come in two foil versions.