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TPCi has announced the next Wi-Fi event. The Enigma Stone will be distributed between July 31 and August 27 to PAL regions (Europe, Australia, etc.) and North America. This event will allow players of Pokémon HeartGold to catch Latios and players of Pokémon SoulSilver to catch Latias.
To download the Enigma Stone, players need to have obtained the National Pokédex and have two or fewer Wonder Cards in their possession.