Gigantamax Pokémon are by far some of the most fun species in Pokémon Sword & Shield. Only certain Pokémon can Gigantamax, increasing their size and stats drastically for three turns and making their moves highly specialized and devastating. Below is a list of every single Gigantamax Pokémon currently available.
Attacks shift to G-Max Wildfire, which foregoes direct damage to instead damage all Pokémon over the next four turns. Gigantamax Charizard can be obtained through Max Raid Battles.
Moves turn into G-Max Volt Crash, which guarantee to paralyze all opponents, including Ground-types. Players gain access to Gigantamax Pikachu by having save data on the Nintendo Switch from Pokémon: Let's Go, Pikachu!
Normal-attacks become G-Max Cuddle, causing both damage and infatuation if the Pokémon is of the opposite gender. Players gain access to Gigantamax Eevee by having save data on the Nintendo Switch from Pokémon: Let's Go, Eevee!
Bug-type attacks become G-Max Befuddle, which damages opponents and inflicts either paralyze, poison, or sleep. Like Charizard, Butterfree can be found in Max Raid Battles.
Normal-type attacked become G-Max God Rush, which damages opponents and pumps out large amounts of gold coins that the player can collect similar to the Payday move. This special Gigantamax Meowth is available to all players as part of an early-purchase bonus from Friday, November 15, 2019, to Wednesday, January 15, 2020.
Flying-type attacks become G-Max Wind Rage, which damage opponents and remove buffs like Reflect, Light Screen, and others. They can be obtained through Max Raid Battles.
Fairy-type moves become G-Max Finale, which damage opponents and also heals all allies on its side of the battlefield. Alcremie can only be found in Max Raid Battles.
Water-type moved become G-Max Stonesurge, which damage opponents and also creates rocks that become battlefield hazards, damaging any who enter after the move has been performed. Drednaw can also be obtained only through Max Raid Battles.
These rest of the Gigantamax Pokémon below all appear to come from Max Raid Battles as well.
Fighting moves change to G-Max Chi Strike, which increases the odds of landing a critical hit go up. Machamp also inexplicably puts on a pair of pants.
Ghost-type moves now become G-Max Terror, in which opponents are left unable to switch out or run away. Of all the Gigantamax moves, this one might be the least impressive, and feels too simple and similar to regular moves from past games.
Coalossal's moves become G-Max Vocalith, a rock move that leaves opponents to take damage for five turns in a row, and is a standard damage-over-time ability.
Ground moves become G-Max Sandblast, which is a Sandstorm that causes damage for five turns in a row.
Fire moves turn into G-Max Centiferno, trapping opponents in fire for five turns, which is again a standard and rather bland version of existing damage-over-time moves from earlier in the series.
Grimmsnarl gains G-Max Snooze, a dark move that inflicts sleep on the opposing Pokémon. It may be simple and bland as well, but sleep has always been a useful tool.
Fairy moves become G-Max Smite, causing all opponents to become confused. Like sleep, confusion is an outstanding effect to put on an enemy and can often snowball into big damage.
Steel moves turn into G-Max Steelsurge, which sends spikes flying all over the battlefield, damaging incoming characters.
Duraludon's dragon moves become G-Max Depletion, which has the useful effect of reducing the PP of the last move used by an opponent.
Gigntamax Flapple and Appletun
The visual differences are few, with Flapple being more green and Appletun more red. Their G-Max Moves are Sweetness for Appletun, a grass move that clears allies negative status effects, while Flapple has G-Max Tartness, another grass move that reduces an opponent's evasion.
Orbeetle's psychic moves turn into G-Max Gravitas. This causes damage and increases gravity for the following five turns, similar to the base move Gravity.
Poison moves become G-Max Malodor, which has the strong effect of poisoning all enemies at once. This can be a massive swing if an opponent does not have the means to cleanse or heal the damage that will build up.
Water moves change to G-Max Foam Burst, which cuts down the speed of an opponent.
Ice moves become G-Max Resonance, which reducing all incoming damage to Lapras for the following five turns.