Be careful out there, Trainers
The moon is full and the Pokémon Dens in Pokémon Sword and Pokémon Shield are filled to the brim with lovable Dynamax Pokémon. Until September 18th, 2022, at 4:59 p.m. PDT, Pyukumuku, Pincurchin, and Snom will appear more often in Max Raid Battles—lucky Trainers might even encounter a Shiny Snom!
For an opportunity to encounter these Pokémon in a Max Raid Battle, you’ll need to connect your Switch to the internet through 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 with a Dynamax Pokémon. This event does not affect the Pokémon encountered within Dynamax Adventures.