With a parting threat, the user lowers the target's Attack and Sp. Atk stats. Then it switches with a party Pokémon.
Parting Shot lowers the target's Attack and Special Attack stats by one stage each, and then switches the user out. Pokémon with the Ability Soundproof are not affected by this move.
The user will not switch out if Parting Shot fails (such as if it has no target), if the target is immune (such as due to Soundproof), or if it is blocked by a protection move. However, the user will switch even if Parting Shot is unable to affect the target's stats (such as due to Clear Body or Mist).
If Parting Shot is used on a Pokémon with the Ability Magic Bounce, the effect will be bounced back to the user, lowering its Attack and Special Attack, and the target will switch out instead.
If an opponent uses Pursuit on the same turn Parting Shot is used, Pursuit will deal normal damage if the foe is faster, or double damage if the foe is slower than the user.