Five years after the events of Colosseum, Cipher has reemerged with a new mysterious boss and renewed vigor. They bided their time to further perfect their tainting process and managed to create Shadow Lugia, the most powerful Shadow Pokémon of all and allegedly immune to purification. Thankfully, a group of scientists feared for this eventuality and also spent the time and money to create numerous countermeasures, such as a new Snag Machine and a more efficient purification process. The plot this time revolves around "XD001": a Lugia transformed by the reborn Cipher crime syndicate into a Shadow Pokémon supposedly immune to purification.
