Pokémon Form Change

Rotom's forms make a return once again, inexplicably through time. Ginter of the Ginko Guild has got a variety of special items he sells you and some will be mysterious Mechanical items he doesn't know what are used for. Buy them and they will go in your lodgings and allow for you to change Rotom's form at will
Mechanical Box - Heat Rotom
Mechanical Cabinet - Frost Rotom
Mechanical Tub - Wash Rotom
Mechanical Pinwheel - Fan Rotom
Mechanical Circular Saw - Mow Rotom

Rotom	Mow Rotom	Frost Rotom	Heat Rotom	Fan Rotom	Wash Rotom
	Leaf Storm	Blizzard	Overheat	Air Slash	Hydro Pump
Base Stats: HP: 50 Attack: 50 Defense: 77 Sp. Attack: 95 Sp. Defense: 77 Speed: 91	Base Stats: HP: 50 Attack: 65 Defense: 107 Sp. Attack: 105 Sp. Defense: 107 Speed: 86

As Sunny Day isn't a thing in this game, Cherrim's form is harder to get. It is still tied to the weather and only appears when it is Sunny. Cherrim has received an upgrade in this game. Due to the lack of abilities in the game, its stats have been increased in its Sunshine Form

Overcast Form	Sunshine Form
Base Stats: HP: 70 Attack: 60 Defense: 70 Sp. Attack: 87 Sp. Defense: 78 Speed: 85	Base Stats: HP: 70 Attack: 90 Defense: 70 Sp. Attack: 87 Sp. Defense: 117 Speed: 85

As with all games, Burmy changes its form based on location. As this game is set in the past, the locations vary depending on each of the biomes and change after battle: Plant Cloak - Jubilife Village, Obsidian Fieldlands
Sandy Cloak - Crimson Mirelands, Cobalt Coastlands
Trash Cloak - Coronet Highlands, Alabaster Icelands

Arceus' forms have undergone a bit of a change. In this game, all Arceus' Plates are now key items. All you need to do is use the Plate on Arceus and it will change form. This includes the new plate, the Blank Plate, which changes Arceus back to its Normal-type

There is another plate, however. The Legend Plate is obtained when you get Arceus and can be used in an identical way. It will make Arceus its Normal-type, but with a twist. The move Judgment will automatically change type to a type that will be Super Effective on the opponent. When you use the move, it will change Arceus' type to this type as well.

The plate prioritises damage then resistance to the opponent Pokémon's types and picks the type based on that in the following priority:
4* Weakness, Immune to opponent
4* Weakness, 0.25* resistance to opponent
4* Weakness, 0.5* resistance to opponent
4* Weakness, standard damage from opponent
2* Weakness, Immune to opponent
2* Weakness, 0.25* resistance to opponent
2* Weakness, 0.5* resistance to opponent
2* Weakness, standard damage from opponent

In this game, Dialga has received a new form, the Origin Forme. This form is the one you face in the game if you picked Irida to work with in the story. To change Dialga's forms, you need to get the Adamant Crystal from Adaman during the Request: The Diamond Clan's Treasure. Once obtained, simply use the item in the menu to change Dialga's forms at will

When in Origin Forme, Dialga's Roar of Time move increases in power to 140 Power but with a reduced accuracy of 75

Standard Forme	Origin Forme
Base Stats: HP: 100 Attack: 120 Defense: 120 Sp. Attack: 150 Sp. Defense: 100 Speed: 90	Base Stats: HP: 100 Attack: 100 Defense: 120 Sp. Attack: 150 Sp. Defense: 120 Speed: 90

In this game, Palkia has received a new form, the Origin Forme. This form is the one you face in the game if you picked Adaman to work with in the story. To change Palkia's forms, you need to get the Lustrous Globe from Irida during the Request: The Pearl Clan's Treasure. Once obtained, simply use the item in the menu to change Palkia's forms at will

When in Origin Forme, Palkia's Spacial Rend move decreases in power to 80 Power with a reduced accuracy of 85 but a higher chance of critical hits

Standard Forme	Origin Forme
Base Stats: HP: 90 Attack: 120 Defense: 100 Sp. Attack: 150 Sp. Defense: 120 Speed: 100	Base Stats: HP: 90 Attack: 100 Defense: 100 Sp. Attack: 150 Sp. Defense: 120 Speed: 120

Giratina's forms make a return. In this game, you will catch Giratina already in its Origin Forme but immediately afterwards, you will get the Griseous Core item. Once obtained, simply use the item in the menu to change Giratina forms at will

When in Origin Forme, Giratina's Shadow Force move increases power to 120 but reduces accuracy to 80

Alterd Forme	Origin Forme
Base Stats: HP: 150 Attack: 100 Defense: 120 Sp. Attack: 100 Sp. Defense: 120 Speed: 90	Base Stats: HP: 150 Attack: 120 Defense: 100 Sp. Attack: 120 Sp. Defense: 100 Speed: 90

The Incarnate Pokémon from Unova have made an appearance in Hisui and, as with prior games, you can use the Reveal Glass in order to change their form from the item menu. The Reveal Glass is given after completion of the request Incarnate Forces of Hisui

Tornadus	Thundurus	Landorus	Enamorus

Shaymin's Sky Forme is also available in the game. During the request A Token of Gratitude, you will get given the Gracidea as a hint to find Shaymin. When you have Shaymin in Floaro Gardens, you can use the Gracidea on it in the item menu. It reverts when Shaymin is boxed and can't be used at night, though the form no longer reverts at night until you send it into battle

Land Forme	Sky Forme
Base Stats: HP: 100 Attack: 100 Defense: 100 Sp. Attack: 100 Sp. Defense: 100 Speed: 100	Base Stats: HP: 100 Attack: 103 Defense: 75 Sp. Attack: 120 Sp. Defense: 75 Speed: 127