Ruby: CASTFORM’s appearance changes with the weather. This POKéMON gained the ability to usethe vast power of nature to protect its tiny body.
Sapphire: CASTFORM borrows the power of nature to transform itself into the guises of the sun, rain clouds, and snow clouds.This POKéMON’s feelings change with the weather.
Emerald: It alters its form depending on the weather. Changes in the climate such as the temperature and humidity appear to affect its cellular structure.
Firered: It has the ability to change its form into the sun, the rain, or a snow cloud, depending on the weather.
Leafgreen: It has the ability to change its form into the sun, the rain, or a snow cloud, depending on the weather.
Diamond: Its appearance changes with the weather. Recently, its molecules were found to be just like water.
Pearl: Its appearance changes with the weather. Recently, its molecules were found to be just like water.
Platinum: Its appearance changes with the weather. Recently, its molecules were found to be just like water.
Heartgold: This Pokémon can change its cells, taking different forms based on the temperature and humidity.
Soulsilver: This Pokémon can change its cells, taking different forms based on the temperature and humidity.
Black: Its appearance changes with the weather. Recently, its molecules were found to be just like water.
White: Its appearance changes with the weather. Recently, its molecules were found to be just like water.
Black-2: Temperature and weather affect its cellular structure, so this Pokémon changes form according to the weather.
White-2: Temperature and weather affect its cellular structure, so this Pokémon changes form according to the weather.
X: This Pokémon can change its cells, taking different forms based on the temperature and humidity.
Y: It has the ability to change its form into the sun, the rain, or a snow cloud, depending on the weather.
Omega-Ruby: Castform’s appearance changes with the weather. This Pokémon gained the ability to use the vast power of nature to protect its tiny body.
Alpha-Sapphire: Castform borrows the power of nature to transform itself into the guises of the sun, rain, and snow-clouds. This Pokémon’s feelings change with the weather.
Sun: It changes its form depending on the weather. Changes in the temperature or humidity appear to affect its cellular structure.
Moon: Its form changes on its own, due to its cells’ sensitive reactions to temperature and humidity.
Ultra-Sun: Although its form changes with the weather, that is apparently the result of a chemical reaction and not the result of its own free will.
Ultra-Moon: Its form changes depending on the weather. The rougher conditions get, the rougher Castform’s disposition!