Three of Pokémon Go’s current Legendary Raid Pokémon are just mere days away from leaving the game.

Latias had been available in Legendary Raid battles in Europe and Asia since April 2 and then switched over to North America, South America, and Africa on May 8. Latios, on the other hand, also switched from the Americas and Africa to the European and Asian regions on May 8—and now both creatures will be leaving the game on June 5.

The duo is available in Legendary Raids alongside Ho-Oh, who recently returned to the game with a new Shiny variant. Ho-Oh was the second Johto legendary Pokémon to return to Pokémon Go following Lugia, and it’ll leave the game on June 7—two days after Latias and Latios.

All of these Pokemon are available to battle now in Legendary Raids. Don’t go against them alone, however—Niantic advises being in a group of at least 15 trainers take on these super-powered Pokémon.

Once you beat a legendary Pokémon in a raid, you’ll be given a small amount of Pokéballs to try to catch it. If you fail, you’ll need to try to find another Legendary Raid to challenge the flying beasts again.

After the trio leaves the game, Pokemon Go will have no legendary Pokemon available to capture. Niantic hasn’t announced which legendary Pokémon will join Legendary Raids next. The developer also hasn’t revealed if these Pokémon will return in the future, so trainers looking to complete the Hoenn and Johto Pokédex should act fast to get their hands on these mythical beasts.