Although Niantic had previously suggested that players would get the chance to catch rare monsters at the upcoming Pokemon Go Fest, the developer has now revealed that those Pokemon will be legendaries.
The game has been out for more than a year and despite a whole host of new features and Pokemon being added to the game, legendary creatures have so far not been available to catch through legitimate means. With player numbers waning compared to their launch height, it seems sensible for the studio to add the rare monsters into the game in order to capture attention.
The method of acquiring a legendary Pokemon will not be easy. It will depend on those attending the festival to succeed in their own unique raid. If they do, the unidentified legendary will start appearing on other random gyms, requiring players to work together in raids to capture their own. Unfortunately, you won’t be able to leave any captured legendary at a gym to battle for you as it would seem this would make it too difficult for other players.
The official announcement from Niantic about the event is below:
As Trainers around the world go out and explore their neighborhoods in search of Pokémon and Raid Battles, they can keep an eye out for unique Legendary Eggs appearing at Gyms. If Trainers and their team are able to successfully defeat a Legendary Raid Boss, they’ll have the opportunity to catch a Legendary Pokémon of their own! While Legendary Pokémon will help them take on the toughest Raid Bosses and Gym Battles, they’re not willing to leave their Trainer’s side, so they can’t be left to defend Gyms.
On July 22, thousands of Trainers in Grant Park for Pokémon GO Fest and the millions of others around the world will be working together to unlock in-game bonuses for the entire Pokémon GO community. If they manage to catch enough Pokémon during the Pokémon GO Fest Challenge Windows, the first Legendary Pokémon will be revealed in Grant Park. If the Trainers in Chicago succeed in defeating the Legendary Pokémon, that Pokémon will start appearing in Raid Battles around the world, after Pokémon GO Fest.