[Ability][Checkup] Forecast

[frutescens]

Ability Requirements

• Documentation
• Tests
• Depending on the weather, Forecast will change Castform's form, which also changes its type. Castform changes as follows:
  • During harsh sunlight or extremely harsh sunlight, it will become Sunny Form, which is Fire-type.
  • During hail, it will become Snowy Form, which is Ice-type.
  • During rain or heavy rain, it will become Rainy Form, which is Water-type.
  • During a sandstorm, fog, strong winds, a shadowy aura, or clear weather, it will revert to its normal form, which is Normal-type.
  • It will also revert to its normal form if a Pokémon on the field has Cloud Nine or Air Lock.
• This Ability has no effect on Pokémon other than Castform.
• Forecast does not change Castform's form until after Stealth Rock deals damage.
• If a Pokémon transforms into Castform, the Pokémon will remain in the same form as the target Castform, regardless of the weather.
• If Castform loses Forecast or Forecast is suppressed with Gastro Acid, it will revert to its normal form and not be able to change form. If Castform regains Forecast, it will change form to match the current weather, unless it would be in its normal form in the current weather.
• Role Play fails if the target has the Ability Forecast. Entrainment fails if the user has the Ability Forecast. Forecast cannot be copied by Power of Alchemy or Receiver or Trace, nor can it be traded by Wandering Spirit.

Related PRs

Flyout Behaviour

Related Bugs

• Castform does not transform after regaining access to its ability in valid weather. See [Ability][Bug] Post (Re)Acquisition Ability Activations #436

References

• Bulbapedia - Forecast