EX Delta Species gives you the opportunity to experience new adventures in a faraway land never before seen in the Pokémon universe! Researchers have built a city called Holon. The people of Holon study mysterious, magnetic powers in the area. The powers have affected the local Pokémon in ways that scientists have barely begun to understand. These new Pokémon are called Delta Species Pokémon because they are different from standard Pokémon, Pokémon-ex, and Pokémon "star." The people of Holon are hard workers, and their industriousness is reflected in the new Holon Supporter cards. And, as scientists begin to harness the power around Holon, new Energy cards become available... including Pokémon that can become Energy cards!