Defiant (ability)

Defiant is an ability that was introduced in Generation 5.

In battle
Whenever an opponent's Pokémon lower the stat of a Pokémon with Defiant, the Pokémon Attack will rise by 2 stages. It will not activate if it lowers its own stats such as Close Combat and Overheat.

If the Pokémon have multiple stat drops, then with each stat drop, Defiant will activate.

If the Pokémon with a White Herb has the ability Defiant has their stat drop, Defiant will activate first and then the White Herb will recover the lowered stat. However, if the stat drop is the Attack stat, the White Herb will not activate because of Defiant activation and therefore the item will not get consumed.

Outside of battle
Defiant has no effect outside of battle.