Changeable?: Yes

Method:
The forms of Tornadus, Thundurus and Landorus are fully capable of being changed. This is done using the item, Reveal Glass, which is obtained by taking the Therian Forme Landorus to Abundant Shrine. Then, when you use the item, it will switch the Pokémon between forms. If you change the Pokémon obtained in Dream Radar to the Incarnate Form, they will have their Hidden Ability. However, you can also change Incarnate Form Tornadus/Thundurus/Landorus captured in Black & White into their Therian Forme.

Therian Forme
Ability: Regenerator	Ability: Volt Absorb	Ability: Intimidate
Base Stats: HP: 79 Attack: 100 Defense: 80 Sp. Attack: 110 Sp. Defense: 90 Speed: 121	Base Stats: HP: 79 Attack: 105 Defense: 70 Sp. Attack: 145 Sp. Defense: 80 Speed: 101	Base Stats: HP: 89 Attack: 145 Defense: 90 Sp. Attack: 105 Sp. Defense: 80 Speed: 91
Incarnate Form
Ability: Prankster Hidden Ability: Defiant	Ability: Prankster Hidden Ability: Defiant	Ability: Sand Force Hidden Ability: Sheer Force
Base Stats: HP: 79 Attack: 115 Defense: 70 Sp. Attack: 125 Sp. Defense: 80 Speed: 111	Base Stats: HP: 79 Attack: 115 Defense: 70 Sp. Attack: 125 Sp. Defense: 80 Speed: 111	Base Stats: HP: 89 Attack: 125 Defense: 90 Sp. Attack: 115 Sp. Defense: 80 Speed: 101

Changeable?: Yes

Method:
The forms of Kyurem are unique in that they take another Pokémon and completely envelop them in order to create the new form in a process called Absofusion. This is done using the special item, DNA Splicers which is found in Giant Chasm after capturing Kyurem. When you use this item, you have to select Kyurem and either Reshiram or Zekrom. This will merge the Pokémon together into a far stronger Pokémon. This can be reverted at any time, using the item. Any changes to Kyurem such as Level and EVs carry over to each form of Kyurem, while Reshiram or Zekrom remain untouched. For example, if you fuse a Level 70 Kyurem and a Level 70 Reshiram, and level Kyurem up to Level 92, when you defuse them, Kyurem will remain Level 92 and Reshiram will still be Level 70. However, the moves on Kyurem will reset to the last four in its level up from the current level.

Ability: Pressure	Ability: Teravolt	Ability: Turboblaze
Base Stats: HP: 125 Attack: 130 Defense: 90 Sp. Attack: 130 Sp. Defense: 90 Speed: 95	Base Stats: HP: 125 Attack: 170 Defense: 100 Sp. Attack: 120 Sp. Defense: 90 Speed: 95	Base Stats: HP: 125 Attack: 120 Defense: 90 Sp. Attack: 170 Sp. Defense: 100 Speed: 95

Changeable?: Yes

Method:
Keldeo's form is unique in that it only changes when it knows the move "Secret Sword". This move is only teachable by an event in Pledge Grove, by going behind Alder's house in Floccesy Town. If Keldeo forgets the move of Secret Sword, it will revert back to its Ordinary Form.

Ordinary Form	Resolute Form

Changeable?: Yes

Method:
Meloetta is an upcoming event Pokémon and also has two different forms. These forms differ in both stats and type. To change the form of Meloetta, you need to take it to the café in Castelia City where you'll meet a character who will teach it a brand new move. This move, Relic Song, will allow you to change Meloetta's form at will, however it only changes when it is used in battle.

Aria Forme	Pirouette Forme
Base Stats: HP: 100 Attack: 77 Defense: 77 Sp. Attack: 128 Sp. Defense: 128 Speed: 90	Base Stats: HP: 100 Attack: 128 Defense: 90 Sp. Attack: 77 Sp. Defense: 77 Speed: 127

Changeable?: No

Method:
Like in Black & White, Basculin. This Pokémon has two forms, the Red Stripe Form and the Blue Stripe Form. These forms are not interchangeable and are dependant on its appearance at capture. The Red Stripe form is the form found during play on Pokémon Black 2 and the Blue Stripe form is the form found in White. However, you have the ability to find the other forms in the other games through use of the new Wild Pokémon encounter method where Pokémon will appear randomly it bits of water.
In addition to the change of appearance, the forms can have different abilities.In addition to this, each form has a different possible hold item, at a 5% rate of having the item.

Red-Striped Form	Blue-Striped Form
Item:	Item:
DeepSeaTooth	DeepSeaScale
Ability: Reckless Adaptability Mold Breaker	Ability: Rock Head Adaptability Mold Breaker

Changeable?: Yes

Method:
Deoxys' four forms make a return within this game. When you have sent Deoxys over via the PokéTransfer in Route 15, you can take it to Nacrene City where a meteorite is on display in the museum. Interact with this meteorite with Deoxys in your team and you'll be able to change its form. You can't select the form, but it does cycle through them in this order; Normal Forme -> Attack Forme -> Defence Forme -> Speed Forme

Normal Forme	Attack Forme	Defense Forme	Speed Forme
Base Stats: HP: 50 Attack: 150 Defense: 50 Sp. Attack: 150 Sp. Defense: 50 Speed: 150	Base Stats: HP: 50 Attack: 180 Defense: 20 Sp. Attack: 180 Sp. Defense: 20 Speed: 150	Base Stats: HP: 50 Attack: 70 Defense: 160 Sp. Attack: 70 Sp. Defense: 160 Speed: 90	Base Stats: HP: 50 Attack: 95 Defense: 90 Sp. Attack: 95 Sp. Defense: 90 Speed: 180

Changeable?: Yes

Method:
Giratina's alternate forms are also present within this game. After you have defeated the Elite Four, you have the ability to access Dragonspiral Tower. Near the top of this tower, you'll find three items; Adamant Orb, Lustrous Orb and most importantly, Griseous Orb. With this item, you can attach it to Giratina and Giratina will change its form to its Origin Forme

Altered Forme	Origin Forme
Ability: Pressure	Ability: Levitate
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

Changeable?: Yes

Method:
Rotom's five alternate forms make a return within this game. When you have sent Rotom over, you will be able to take Rotom with you to the Department Store in Route 9. In this store, there is a room with multiple storage boxes. Interact with this box and you'll be able to change your Rotom's form. These Rotom all have special attacks that can only be used while in that form and they change type

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

Changeable?: Yes

Method:
Shaymin's alternate forms are also present within this game. After you have defeated the Elite Four, when you go to the Striaton City Pokémon Centre with a Shaymin from an event that you've transferred over from the fourth generation games, talk to the lady here and she will give you the Gracidea key item. This item will change Shaymin's form between 5am and 8pm each day.

Land Forme	Sky Forme
Ability: Natural Cure	Ability: Serene Grace
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