When the user of Flash Fire is hit with a Fire Type move-including Hidden Power Fire-the Ability activates and increases the power of the users' Fire-Type attacks by 50%. Whilst this ability is active the Pokémon gains an immunity to damage from Fire-Type moves and Hidden Power Fire, ignoring Accuracy and effect of said attacks.
Will-O-Wisp will activate this Ability without having any effect, but if a non-Fire type Pokémon gains this Ability temporarily (via Role Play or Trace, for examples), Will-O-Wisp will activate this Ability and leave that Pokémon with a Burn.
Flash Fire doesn't have an effect in the Overworld.
Pokémon With Flash Fire
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