Also coming within the Isle of Armor DLC Package are five brand New Gigantamax Forms! Three of which belong to Rillaboom, Cinderace and Inteleon, meaning each of the Galar Starters will have a Gigantamax Form. Unfortunately, The Galar Region Gigantamax Starters are quite exclusive: Only your Starter Pokemon that you chose at the beginning of Pokemon Sword & Shield will be able to achieve its Gigantamax Form (without the aid of Max Soup).
Outside of their new appearances, Rillaboom, Cinderace and Inteleon will remain basically the same when in their Gigantamax Forms (except being especially stronger). Gigantamax Rillaboom will know the G-Max Move of G-Max Drum Solo which ignores the opponent's Abilities. Similarly, Gigantamax Cinderace will know the G-Max Move of G-Max Fireball and Gigantamax Inteleon will know the G-Max Move of G-Max Hydrosnipe; both of these G-Max Moves also ignore the opponent's abilities.