Pokémon Go's current legendary Pokémon, Latias and Latios, will be swapping locations in Legendary Raids starting tomorrow.
Latias, who has been available in Legendary Raid battles in Europe and Asia since April 2 will switch over to North America, South America, and Africa from May 8. Latios will also switch from the Americas and Africa to the European and Asian regions at the same time.
Players looking to add the Eon Pokémon to their Pokédex should stock up on strong Ice, Bug, Ghost, Dragon, Dark, and Fairy-type Pokémon, such as Dragonite or Glalie. Don't go against it alone in a Legendary Raid, however. Niantic advises at least a group of 15 trainers take on these super-powered Pokémon.
Once a team beats a legendary Pokémon in a raid, players will be given a small amount of Pokéballs to try to catch it. If they fail, they'll need to try to find another legendary raid to challenge the Eons again for another chance.
The legendary Pokémon first appeared in Pokémon Ruby and Saphire as two of the series' favorite Pokémon. The duo were given a bigger part in the story in the eventual re-release of the third generation titles, Pokémon AlphaSaphire and OmegaRuby, where they helped the main character to explore Hoenn to save the world.
Once the duo switch locations, trainers will have until June 5 to find, fight, and capture them. Niantic has not yet confirmed whether or not the duo will return, so be sure to act fast before they are gone for good.