Flash-Fire

Summary

Flash Fire is a Pokémon ability introduced in Generation III.

Effect:

Grants immunity to all Fire-type moves, including non-damaging ones like Will-O-Wisp
When hit by a Fire-type move, boosts the power of the Pokémon's Fire-type moves by 1.5x until the Pokémon leaves battle
The boost is retained even if the ability is lost or disabled, and even if the Pokémon is frozen and then thawed
Fire-type moves will still activate this ability even if the Pokémon is behind a Substitute

In Battle:

Provides immunity to Fire-type attacks, allowing for strategic switches to absorb powerful moves from opponents
Enhances the user's own Fire-type offensive capabilities once activated, making it more threatening
Can be used to bait opponents into using Fire-type moves, thus activating the boost
Works well with Pokémon that have strong Fire-type attacks or those that can force switches, allowing teammates to take advantage of the boosted Fire-type moves
Particularly effective for teams that struggle against Fire-type threats, as it neutralizes them and turns them into an advantage

Pokémon with this Ability:

Competitive Use:

Valued for its ability to turn one of the most common offensive types, Fire, into a tactical advantage
Often used to check and counter Fire-type attackers in the opponent's team
Can be part of a defensive core that switches into predicted Fire-type moves to mitigate damage and gain momentum
Pairs well with Pokémon that can take advantage of the opponent's forced switches, setting up hazards or boosting stats

Interesting Facts:

Flash Fire's name reflects its dual nature: providing both a defensive shield and an offensive boost
One of the few abilities that grants immunity to a type and offers an offensive boost, making it unique in strategy
Often depicted in the anime with a distinct fiery glow around the Pokémon when activated
Has remained a staple ability on many Fire-type Pokémon since its introduction, showcasing its enduring appeal and utility

This comprehensive analysis highlights Flash Fire's strategic depth and versatility in both casual and competitive play.

This Pokémon is immune to fire-type moves. Once this Pokémon has been hit by a Fire move, its own Fire moves will inflict 1.5× as much damage until it leaves battle. This ability has no effect while the Pokémon is frozen. The Fire damage bonus is retained even if the Pokémon is frozen and thawed or the ability is lost or disabled. Fire moves will ignore this Pokémon's substitute. This ability takes effect even on non-damaging moves, i.e. will o wisp.

ruby-sapphire: Powers up if hit by fire.
emerald: Powers up if hit by fire.
firered-leafgreen: Powers up if hit by fire.
diamond-pearl: Powers up Fire-type moves if hit by a fire move.
platinum: Powers up Fire-type moves if hit by a fire move.
heartgold-soulsilver: It powers up Fire-type moves if it’s hit by one.
black-white: It powers up Fire-type moves if it’s hit by one.
black-2-white-2: It powers up Fire-type moves if it’s hit by one.
x-y: Powers up the Pokémon’s Fire- type moves if it’s hit by one.
omega-ruby-alpha-sapphire: Powers up the Pokémon’s Fire-type moves if it’s hit by one.
sun-moon: Powers up the Pokémon’s Fire-type moves if it’s hit by one.
ultra-sun-ultra-moon: Powers up the Pokémon’s Fire-type moves if it’s hit by one.
lets-go-pikachu-lets-go-eevee: Powers up the Pokémon’s Fire-type moves if it’s hit by one.
sword-shield: Powers up the Pokémon’s Fire-type moves if it’s hit by one.
scarlet-violet: If hit by a Fire-type move, the Pokémon absorbs the flames and uses them to power up its own Fire-type moves.