White Smoke prevents stat reduction. Therefore the Pokemon’s stats cannot be reduced from moves such as Scary Face nor the Abilities like Intimidate. However, White Smoke does not prevent self-inflicted stat reduction from moves like Overheat. It also does not prevent stat reduction from status ailments like paralysis or items like Full Incense. White Smoke does not prevent stat losses caused by Heart Swap, Guard Swap, Power Swap, Guard Split, Power Split, and Baton Pass.
This Ability is ignored by Pokemon with Mold Breaker, Teravolt, andTurboblaze.
Outside of battle
From Pokemon Emerald onwards, if a Pokemon with White Smoke is leading the party, then White Smoke decreases the wild Pokemon encounter rate by 50%.
Pokemon with White Smoke