To encounter these Pokémon in a Max Raid Battle, you'll need to connect your Nintendo Switch system to the internet through the Y-Comm or by selecting Mystery Gift in the X menu, then selecting Get the Wild Area News. After that, whenever you see a pillar of light shining from a Pokémon Den, you can walk up to the Pokémon Den and interact with it to start a Max Raid Battle. This event does not affect the Pokémon encountered within Dynamax Adventures.
- Sources
Encounter Pinsir, Heracross, Ninjask, Fan Rotom, and More in Max Raid Battles | Pokemon.com
Summertime in Galar brings cool Pokémon to Pokémon Sword and Pokémon Shield’s Pokémon Dens, including Shiny Vanilluxe.www.pokemon.com