Here’s a full list of the Gigantamax Pokemon that will be available to encounter in Max Raid Battles, including details concerning Sword and Shield exclusives.
It was recently confirmed that 22 different forms of Gigantamax Pokemon will be available to encounter in Pokemon Sword and Shield throughout the month of June.
22 Pokemon will be available to encounter in their Gigantamax forms from June 2 until June 29 as part of the upcoming Max Raid Battle event.
From that time, the Pokemon listed above will be available to encounter in their Gigantamax forms until 11:59pm on June 29 (also in UTC), at which point the Max Raid Battle event will end.