Changes Castform's type and form to match the weather.
During rain, strong sunlight, or hail, this Pokémon's type changes to Water, Fire, or Ice, respectively, and its form changes to match. This ability has no effect for any Pokémon other than Castform. If the weather ends or becomes anything that does not trigger this ability, or a Pokémon with Air Lock or Cloud Nine enters battle, this Pokémon's type and form revert to their default. If this ability is lost or disabled, this Pokémon cannot change its current type and form until it regains its ability.
| ruby sapphire | Changes with the weather. |
|---|---|
| emerald | Changes with the weather. |
| firered leafgreen | Changes with the weather. |
| diamond pearl | CASTFORM transforms with the weather. |
| platinum | CASTFORM transforms with the weather. |
| heartgold soulsilver | CASTFORM transforms with the weather. |
| black white | Castform transforms with the weather. |
| black 2 white 2 | Castform transforms with the weather. |
| x y | Castform transforms with the weather. |
| omega ruby alpha sapphire | Castform transforms with the weather. |
| sun moon | The Pokémon transforms with the weather to change its type to Water, Fire, or Ice. |
| ultra sun ultra moon | The Pokémon transforms with the weather to change its type to Water, Fire, or Ice. |
| lets go pikachu lets go eevee | The Pokémon transforms with the weather to change its type to Water, Fire, or Ice. |
| sword shield | The Pokémon transforms with the weather to change its type to Water, Fire, or Ice. |