Castform (Japanese: ポワルン Powalen) is a Normal-type Pokémon introduced in Generation III.
While it is not known to evolve into or from any other Pokémon, Castform changes forms depending on the current weather.
(Refer to Game data→Form data for more details.)
Biology
Castform is an artificial Pokémon that changes appearance and attitude based on the weather. Its body is made of cells exactly like those of water molecules, causing its cellular structure to be chemically altered by temperature and humidity. Though not of its free will, Castform uses this ability to protect its tiny body. In its Normal form, it resembles a plain, gray cloud with a single wisp extending from the top of its head.
Regardless of the form it takes, it will always have a large, spherical head and a lighter-colored mask-like marking over its eyes. Various experiments were conducted to change its form in artificial conditions, but all have failed. In Generation III, Weather Ball was its signature move. Despite its man-made origins, it can be found in grassland areas.
Castform is the only known Pokémon that can have Forecast as an Ability.
Forms
Castform has three alternate forms: Sunny Form, Rainy Form, and Snowy Form.
Under harsh sunlight, it takes on its Sunny Form. Its lower half becomes pure white, while the head turns orange has develops small orange spheres around it. This gives it the overall appearance of the sun above a small cloud. Its skin glows and dries, and becomes hot to the touch.
When it is soaked in rain, it takes on its Rainy Form. It has a dark gray lower half resembling a storm cloud. The head turns blue and resembles a raindrop. Its body is soft and slippery and seeps with water when compressed.
When it is hit by hail, it takes on its Snowy Form. Its head turns purplish-blue. The rest of the body changes into the shape of a mint green, cumulonimbus cloud. Its body becomes a smooth ice-like material, partially frozen measuring temperatures near 23 degrees Fahrenheit.
In the anime
Main series
A Normal Castform in the
animeMajor appearances
Castform debuted in Unfair Weather Friends, under the ownership of Bart. It changed into all of its forms during the episode.
In Currying Favor and Flavor!, an Ally Castform battled Ash alongside a Totem Lurantis during the Lush Jungle trial. It was defeated by a Tackle from Rowlet. Besides its Normal form, it also took on its Sunny Form.
In Mounting an Electrifying Charge!, a Castform used its weather-changing abilities to create rain and snow obstacles during the Charjabug race.
Minor appearances
A Castform appeared in the opening sequence of Destiny Deoxys.
In Clamperl of Wisdom, Spoink mistook a Castform for its lost pearl.
A Coordinator's Castform appeared in Mean With Envy.
In Saved by the Beldum, a Trainer's Castform attended the Ever Grande Conference.
In Spontaneous Combusken!, a Coordinator's Castform competed in the Performance Stage of the Chrysanthemum Contest while in its Sunny Form.
A Trainer's Castform appeared in Exhibition Unmasked!.
In From Z to Shining Z!, a Trainer's Castform watched the battle between Ash's Pikachu and Tapu Koko.
A Trainer's Sunny Form Castform appeared in Making Battles in the Sand!.
A Sunny Form Castform in the anime
A Rainy Form Castform in the anime
A Snowy Form Castform in the anime
Pokédex entries
| Episode
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Pokémon
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Source
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Entry
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| SM035
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Castform
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Rotom Pokédex
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Castform, the Weather Pokémon. A Normal type. Castform has learned to use the power of nature to protect its small body.
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Pokémon Generations
In The Scoop, a Castform was working at TV Mauville as a weather forecaster, an allusion to its weather-based abilities.
In the manga
Pokémon Adventures
- Main article: Fofo
Ruby's Castform, nicknamed Fofo, debuted in Lombre Larceny. Previously, she belonged to Mr. Stone, who was injured in an attack by Team Aqua. Fofo 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 Rara, Fofo was Ruby's go to Smart Contest Pokémon.
In Flash and Cosmog's Secret, two Ally Castform helped a Totem Lurantis fight Moon.
Gallery
Pokédex entries
| Manga
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Chapter
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Entry
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| Pokémon Adventures
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PS189
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This Pokémon changes its form according to the weather. It has learned to protect its small body using the powers of the nature.*
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Pokémon Ruby-Sapphire
A Castform appeared in Descent Of The Weather God!!, where it showed its ability of transforming into many forms depending on the current weather.
In the TCG
- Main article: Castform (TCG)
Other appearances
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This section is incomplete.
Please feel free to edit this section to add missing information and complete it.
Reason: image
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Castform was featured as one of the Pokémon released from a Poké Ball in the demo of Super Smash Bros. Brawl that appeared at Jump Festa.
Game data
Pokédex entries
| This Pokémon was unavailable prior to Generation III.
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| Generation III
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Hoenn
#142
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Kanto
#—
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| Ruby
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Castform's appearance changes with the weather. This Pokémon gained the ability to use the vast power of nature to protect its tiny body.
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| Sapphire
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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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| Emerald
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It alters its form depending on the weather. Changes in the climate such as the temperature and humidity appear to affect its cellular structure.
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| FireRed
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It has the ability to change its form into the sun, the rain, or a snow cloud, depending on the weather.
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| LeafGreen
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| Generation IV
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Sinnoh
#—
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Johto
#—
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| Diamond
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Its appearance changes with the weather. Recently, its molecules were found to be just like water.
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| Pearl
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| Platinum
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| HeartGold
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This Pokémon can change its cells, taking different forms based on the temperature and humidity.
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| SoulSilver
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| Generation V
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Unova
B2W2: #163
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| Black
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Its appearance changes with the weather. Recently, its molecules were found to be just like water.
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| White
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| Black 2
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Temperature and weather affect its cellular structure, so this Pokémon changes form according to the weather.
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| White 2
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| Generation VI
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Kalos
#—
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Hoenn
#147
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| X
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This Pokémon can change its cells, taking different forms based on the temperature and humidity.
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| Y
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It has the ability to change its form into the sun, the rain, or a snow cloud, depending on the weather.
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| Omega Ruby
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Castform's appearance changes with the weather. This Pokémon gained the ability to use the vast power of nature to protect its tiny body.
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| Alpha Sapphire
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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.
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| Generation VII
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Alola
SM: #181
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Alola
USUM: #220
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Kanto
#—
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| This Pokémon has no Pokédex entries in Let's Go, Pikachu! and Let's Go, Eevee!.
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| Normal
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| Sun
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It changes its form depending on the weather. Changes in the temperature or humidity appear to affect its cellular structure.
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| Moon
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Its form changes on its own, due to its cells' sensitive reactions to temperature and humidity.
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| Ultra Sun
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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.
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| Ultra Moon
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Its form changes depending on the weather. The rougher conditions get, the rougher Castform's disposition!
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| Sunny Form
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| Sun
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This is the form Castform takes on the brightest of days. Its skin is unexpectedly hot to the touch, so approach with care.
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| Moon
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This is Castform's form when basking in fair weather. Its body is warm and toasty.
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| Ultra Sun
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This is the form Castform takes on bright days. In an experiment where Castform was placed in front of a heater, it didn't change to this form.
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| Ultra Moon
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Castform changes to this form when it basks in bright sunlight. When you touch its glowing skin, it feels all dried out!
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| Rainy Form
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| Sun
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This is the form Castform takes when soaked with rain. When its body is compressed, water will seep out as if from a sponge.
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| Moon
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This is Castform's form during a downpour of rain. Its body retains moisture and gets slippery.
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| Ultra Sun
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Castform changes to this form when rain hits it. Its body is soft and slightly swollen with water.
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| Ultra Moon
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This is Castform's form when pelted by rain. In an experiment where it was placed in a shower, this Pokémon didn't change to this form.
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| Snowy Form
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| Sun
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This is the form Castform takes when covered in snow. Its body becomes an ice-like material, with a temperature near 23 degrees Fahrenheit.
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| Moon
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This is Castform's form when caught in a hailstorm. Its cold skin is as smooth as ice.
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| Ultra Sun
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This is the form Castform takes when hit by hail. In an experiment where it was placed in a freezer, it didn't change to this form.
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| Ultra Moon
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This is Castform's form when caught in a hailstorm. Its whole body is chilled, and its skin is partially frozen!
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Game locations
| This Pokémon was unavailable prior to Generation III.
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In side games
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Held items
Stats
Base stats
| Stat
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Range
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| At Lv. 50
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At Lv. 100
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70
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130 - 177
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250 - 344
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70
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67 - 134
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130 - 262
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70
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67 - 134
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130 - 262
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70
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67 - 134
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130 - 262
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70
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67 - 134
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130 - 262
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70
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67 - 134
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130 - 262
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Total: 420
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Other Pokémon with this total
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- Minimum stats are calculated with 0 EVs, IVs of 0, and (if applicable) a hindering nature.
- Maximum stats are calculated with 252 EVs, IVs of 31, and (if applicable) a helpful nature.
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Pokéathlon stats
Type effectiveness
Normal
| Under normal battle conditions in Generation IX, this Pokémon is:
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Sunny Form
| Under normal battle conditions in Generation IX, this Pokémon is:
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Rainy Form
| Under normal battle conditions in Generation IX, this Pokémon is:
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Snowy Form
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Learnset
Castform is available in Brilliant Diamond and Shining Pearl.
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- Bold indicates a move that gets STAB when used by Castform
- Italic indicates a move that gets STAB only when used by an Evolution of Castform
- Click on the generation numbers at the top to see level-up moves from other generations
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- Bold indicates a move that gets STAB when used by Castform
- Italic indicates a move that gets STAB only when used by an Evolution of Castform
- Click on the generation numbers at the top to see TM moves from other generations
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- Moves marked with an asterisk (*) must be chain bred onto Castform in Generation VIII
- Moves marked with a double dagger (‡) can only be bred from a Pokémon who learned the move in an earlier generation.
- Moves marked with a superscript game abbreviation can only be bred onto Castform in that game.
- Bold indicates a move that gets STAB when used by Castform
- Italic indicates a move that gets STAB only when used by an Evolution of Castform
- Click on the generation numbers at the top to see Egg moves from other generations
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- Bold indicates a move that gets STAB when used by Castform
- Italic indicates a move that gets STAB only when used by an Evolution of Castform
- Click on the generation numbers at the top to see Move Tutor moves from other generations
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Side game data
Normal Form
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Pokémon Rumble Rush
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Walking Speed: 2.08 seconds
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Base HP: 53
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| Base Attack: 74
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Base Defense: 53
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Base Speed: 60
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Sunny Form
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Pokémon Rumble Rush
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Walking Speed: 2.08 seconds
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Base HP: 53
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| Base Attack: 74
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Base Defense: 53
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Base Speed: 60
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Rainy Form
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Pokémon Rumble Rush
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Walking Speed: 2.08 seconds
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Base HP: 53
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| Base Attack: 74
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Base Defense: 53
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Base Speed: 60
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Snowy Form
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Pokémon Rumble Rush
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Walking Speed: 2.08 seconds
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Base HP: 53
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| Base Attack: 74
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Base Defense: 53
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Base Speed: 60
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Form data
Castform has four interchangeable forms, which it switches between based on the weather in battles, due to its Ability Forecast. Each of its forms has a different type to match the weather. Castform was the first Pokémon to have interchangeable forms.
By default, Castform is in its Normal form and is Normal-type. It is always in this form outside of battles. It begins battles in this form and reverts to this form if withdrawn. It has this form in any weather that does not trigger another form, or if the weather has its effects negated by an active Ability. In harsh sunlight, Forecast changes Castform into its Sunny Form, which is Fire-type. In rain, Forecast changes Castform into its Rainy Form, which is Water-type. In hail, Forecast changes Castform into its Snowy Form, which is Ice-type.
In Generations III and IV, if Forecast is suppressed or replaced, Castform will remain in its current form (regardless of the weather). From Generation V onward, if Forecast is suppressed or replaced, Castform will revert to its Normal form (regardless of the weather).
Castform's Weather Ball will usually receive STAB in any of its forms, except in a sandstorm, under Shadow Sky, or if it loses Forecast.
Castform's forms cannot be viewed in the forms section of the Pokémon Diamond, Pearl, and Platinum Pokédex, nor do they appear on the field in HeartGold and SoulSilver. All of Castform's forms will appear in the forms section of the HeartGold and SoulSilver Pokédex upon obtaining one, even if it never transformed.
Prior to Generation VIII, unlike most Pokémon with form differences, Castform's alternate forms had no Shiny variations of their own, so only the Normal form of a Shiny Castform would look different. Its Shiny forms were first seen in Pokémon HOME; they first became directly obtainable in Pokémon Brilliant Diamond and Shining Pearl (though they were also released in Pokémon GO starting March 24, 2021[1]).
Evolution data
Sprites
| This Pokémon was unavailable prior to Generation III.
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| This Pokémon is unavailable in Generation IX.
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Trivia
Origin
Bulbanews has an article related to this subject:
Castform resembles a living cloud and acts like weather in general, but it may also be based on a weather balloon. It is similar in both concept and design to a teru teru bōzu, a Japanese charm doll used to wish for good weather. Its forms and their types may have originated from the English saying "rain, hail, or shine". As Castform is said to be composed of molecules similar to water, its shape of a large sphere with two smaller orbs resembles an H2O molecule.
Conceptually, Castform may also draw inspiration from or be intended to contrast with the weather rock concept. These are stones jokingly hung up as a low tech way to tell the weather. They are intended to parody the less than perfect forecasting of more complicated modern instruments. Given Castform’s artificial origins and design to predict weather, but does not transform until after the weather is already present, it would certainly fit as the opposite extreme of a weather rock.
The Sunny Form looks like the Sun on a cloud, the Rainy Form is similar to a droplet of rain on a dark cloud, and the Snowy Form appears to be a gust of wind and an ice cream cone.
Name origin
Castform may be a combination of forecast (the prediction of weather) and transform or form (referring to its ability to change form depending on the weather). The German and French names reflect this.
Powalen may be a combination of ポワン powan (onomatopoeia of a sudden transformation, similar to "poof" in English) and 変わる kawaru (to change or transform).
In other languages
| Language
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Title
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Meaning
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 Japanese
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ポワルン Powalen
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From ポワン powan and 変わる kawaru
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 French
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Morphéo
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From morphế and météo
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 Spanish
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Castform
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Same as English name
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 German
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Formeo
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From Form and Meteorologie
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 Italian
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Castform
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Same as English name
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 Korean
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캐스퐁 Castpong
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Transcription of English name
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 Mandarin Chinese
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飄浮泡泡 / 飘浮泡泡 Piāofúpàopào*
漂浮泡泡 Piāofúpàopào*
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From 飄浮 piāofú and 泡泡 pàopào
From 漂浮 piāofú and 泡泡 pàopào
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 Cantonese Chinese
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飄浮泡泡 Pīufàuhpóuhpóuh*
漂浮泡泡 Pīufàuhpóuhpóuh*
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From 飄浮 pīufàuh and 泡泡 póuhpóuh
From 漂浮 pīufàuh and 泡泡 póuhpóuh
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| More languages
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 Hindi
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मौसमर Mausamar
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From मौसम mausam
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 Thai
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โปวาลุน Powalun
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Transcription of Japanese name
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 Vietnamese
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Powalen
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Transliteration of Japanese name
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Normal
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Sunny Form
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Rainy Form
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Snowy Form
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Related articles
References
External links
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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.
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Mystic Water (100%)
For other sprites and images, please see Castform images on the Bulbagarden Archives.
