Kyogre and Groudon Join Rayquaza for a Legendary Week of Raid Battles! – Pokémon GO

Kyogre, Pokémon GO Wiki

Groudon - Moveset & Best Build for Ranked Battle

Pokémon GO - Rayquaza, the Legendary Pokémon originally discovered in the Hoenn region, has descended from the ozone layer in the sky! Get ready for battle, Trainers!

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Returning Legendaries headline stacked August for Pokémon Go Fest 2023 season - Dot Esports

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Kyogre & Groudon Raid Guide Infographic by Team gtr-Storm (Individual guides linked in comments) : r/TheSilphRoad