First we'll tackle Rotom. Rotom is found within the Old Chateau in Pokémon Diamond, Pearl & Platinum at Levels 15, 15 & 20 respectively. Rotom is unique in that it has the ability to possess multiple items. This is done utilising a Key Item called the Secret Key, set to be given over Mystery Gift WiFi from September 28th. We'll bring you more on that date

Rotom	Frost Rotom	Wash Rotom	Fan Rotom	Mow Rotom	Heat Rotom
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
Games in: Diamond Pearl Platinum	Games in: Platinum

Next is Giratina. Giratina is obtained in an area called the Distortion World. In the Distortion World, all Giratina are in their Origin Forme. When in the real world, they are in their Altered Forme. After you have captured Giratina and defeated the Elite Four. A portal back into another part of the Distortion World appears. In this part of the Distortion World, you will find an Item called the Griseous Orb.

This item, when attached to Giratina, changes its form to the Origin Forme and boosts the power of Giratina's Ghost & Dragon moves. However, when you go online to connect to past games, the item temporarily disappears. This is due to incompatibility with the game. As it disappears, Giratina reverts back to its Altered Forme

Giratina's Forms both have many different attributes including, stats attacks and even ability so it is best that you keep clear in your mind what form has what strengths. Below is a quick and simple rundown.

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
Games in: Diamond Pearl Platinum	Games in: Platinum

Finally, Shaymin is the last Pokémon that changes forms. Shaymin is an event Pokémon and as such, there are special circumstances towards changing its form.

In order to get the Key Item called the Glacidia Flower from this girl in Floaroma Town, you need to have the Shaymin given away at the 11th Movie in 2008 or at various events in 2009. The Shaymin captured in this game can also activate this. With this Shaymin, you get the Glacidia Flower. This item is a Key Item and thus does not require attachment. However, to use it, there are a number of conditions. Firstly, it has to be in the Day, meaning from Between 7am to 8pm. Second, Shaymin cannot be Frozen.

Once used, Shaymin will stay in Sky Forme and there are only two ways to make it revert back. First, you put it in a box and it will rever once you place it in. Secondly, when the time hits 8pm, Shaymin will automatically go back from Sky Forme to Land Forme making Shaymin's Sky Forme a Daytime only Pokémon

Shaymin's Forms also both have many different attributes including, stats attacks and even ability so it is best that you keep clear in your mind what form has what strengths. Below is a quick and simple rundown.

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: 127 Sp. Defense: 75 Speed: 120
Games in: Diamond Pearl	Games in: Platinum