Read on below to learn about the latest Max Raid Battle events in Pokémon Sword and Shield:
The following Pokémon will be available in Max Raid Battles from June 2 at 13:00 UTC through June 29 at 23:59 UTC:
Pokémon Sword: Gigantamax Corviknight, Gengar, Kingler, Lapras, Snorlax, Garbodor, Appletun, Toxtricity (Amped Form), Centiskorch, Grimmsnarl, Duraludon and Alcremie
Pokémon Shield: Gigantamax Charizard, Butterfree, Snorlax, Machamp, Hatterne, Orbeetle, Drednaw, Coalossal, Flapple, Sandaconda, Copperajah and Toxtricity (Low Key Form)
To challenge these Pokémon in a Max Raid Battle, you’ll need to connect your Nintendo Switch system to the internet. Then, whenever you see a pillar of light shining from a Pokémon Den in the Wild Area, you can walk up to the Pokémon Den and interact with it to start a Max Raid Battle with a Dynamax Pokémon. Usually, there’ll be an extremely small possibility a Gigantamax Pokémon will appear instead of a Dynamax Pokémon, but during an event, certain Gigantamax Pokémon are more likely to appear.
Source: Pokemon.com
Pokémon Blog 
One thought on “22 different Gigantamax Pokémon will be available in Pokémon Sword and Shield Max Raid Battles from June 2 to June 29”