→Trivia: Just checked SS. Castform's alternate forms do appear in the dex for those versions. Made a technical correction. Somebody should recheck D, P, and P dexes to be sure they don't appear.
** They are also the only fully-evolved Pokémon that can change forms freely and are not banned from tournaments.
** They are also the only fully-evolved Pokémon that can change forms freely and are not banned from tournaments.
* In [[Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness]], Castform is a body size 4 despite it being a body size 1 in the [[Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team|first Mystery Dungeon games]] and its in-game sprite still being the same size in the second Mystery Dungeon games. This is probably for game balance reasons.
* In [[Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness]], Castform is a body size 4 despite it being a body size 1 in the [[Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team|first Mystery Dungeon games]] and its in-game sprite still being the same size in the second Mystery Dungeon games. This is probably for game balance reasons.
* Castform's weather-based transformations cannot be viewed in the forms section of the Pokédex, nor do they appear on the field in {{game|HeartGold and SoulSilver|s}}.
* Castform's weather-based transformations cannot be viewed in the forms section of the {{game|Diamond and Pearl|s}} or {{game|Platinum}} Pokédex, nor do they appear on the field in {{game|HeartGold and SoulSilver|s}}. They do, however, appear in the {{game|HeartGold and SoulSilver|s}} Pokedex forms section.
* Despite several Pokédex entries stating that its molecules are just like water, it is not a Water-type Pokémon, though it does become one in [[Weather conditions#Heavy rain|rain]].
* Despite several Pokédex entries stating that its molecules are just like water, it is not a Water-type Pokémon, though it does become one in [[Weather conditions#Heavy rain|rain]].
Castform is an artificial Pokémon created by the Weather Institute in Hoenn. It was designed to help scientists predict the weather, and consequently changes its appearance (and type) when the weather changes.
In its natural state, Castform is small, gray and resembles a cloud. When it is extremely sunny, Castform's lower half becomes pure white while the head turns orange with smaller orange balls surrounding it. This gives Castform's head a shape that is similar to the sun. During rain, Castform's lower half becomes a darker shade of gray. The head is blue, resembling a drop of rain. In hail or snowy weather, Castform's head turns purplish-blue. The rest of of the body changes into a mint green cumulonimbus cloud. Strangely, Castform does not have a form for sandstorms or fog.
In all forms, Castform has markings around its eyes similar to a pair of sunglasses.
Gender differences
None.
Special abilities
Castform has the aforementioned ability to change its form with the weather (although it lacks forms for sandstorms and fog). Castform is capable of various Fire-, Water-, Ice-, Electric- and Template:Type2 moves. Castform is one of the few Pokémon that can learn Weather Ball.
A Castform, nicknamed Popo, belongs to Ruby in Pokémon Adventures. Previously, she belonged to Mr. Stone, who was injured in an attack by Team Aqua. Popo was then given to Gabby and Ty to be cared for while he was being healed. She later decided to travel with Ruby when he began traveling with the reporters because she was lonely. Until he was reunited with Ruru, Popo was Ruby's Smart contest Pokémon.
Castform borrows the power of nature to transform itself into guises of the sun, rain clouds, and snow clouds. This Pokémon's feelings change with the weather.
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| colspan="13" | Bold indicates a move that gets STAB Italic indicates a move that gets STAB only from an Evolution or alternate form of this Pokémon A colored initial indicates that the move is not available to be tutored in this game, while a colored background indicates that the move is available.
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Weather Ball will become a Template:Type2 attack in a sandstorm, despite Castform not having an elemental form for it.
Castform's Weather Ball will always receive STAB, even when its form is changed, except in a sandstorm, when Shadow Sky is active, or if it loses its ability because of Gastro Acid or Skill Swap.
Castform is the only Pokémon to receive this benefit from Weather Ball.
Castform and Cherrim are the only Pokémon to date that change with the weather.
They are also the only fully-evolved Pokémon that can change forms freely and are not banned from tournaments.
It appears to be intended to resemble and act like a living cloud. Its ability to change shape and type depending on the weather condition makes similar to a weather balloon. It's also similar both in concept and design to a teru teru bozu, a Japanese charm doll used to wish for good weather.
Name origin
Castform's name seems to be a combination of forecast, predict the weather, and transform, referring to its ability to change type depending on the weather. The German and French names refer to this as well.
Powalen may be a combination of 天気予報 tenkyohō, weather forecast, and 変わる kawaru, to change or transform.
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.
