Pokemon Go Reveals New Might and Mastery Season
A new season of Pokemon Go starts soon, adding new Max Battles, a new Shiny Pokemon, and new Pokemon from Sword and Shield.
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Pokémon Go Shinies - how to catch Shiny Magikarp, Red Gyarados, and what we know about other Shiny Pokémon
They of course can also appear in anywhere you'd find a Pokémon, not just the wild - so that includes hatching Eggs, Research task ... the arrival of Magikarp and Red Gyarados, the number is ...