Flash Fire

When this Pokémon is hit by a Fire move, it takes no damage, and all Fire moves used by this Pokémon are 50% stronger. Further hits by Fire moves simply do no damage, they do not boost damage further. This power boost is lost upon switching out. Will-O-Wisp also activates Flash Fire. If a Pokemon with Flash Fire is frozen, when it is hit by a Fire move, it will be defrosted and take damage without boosting Flash Fire.

Pokémon	Tier	Abilities	HP	Atk	Def	SpA	SpD	Spe
Arcanine	BL	Flash Fire / Intimidate	90	110	80	100	80	95
Flareon	UU	Flash Fire	65	130	60	95	110	65
Heatran	OU	Flash Fire	91	90	106	130	106	77
Houndoom	BL	Flash Fire / Early Bird	75	90	50	110	80	95
Ninetales	UU	Flash Fire	73	76	75	81	100	100
Rapidash	UU	Flash Fire / Run Away	65	100	70	80	80	105