Once during your turn (before your attack), choose 1 of your Active Pokémon or 1 of your Benched Pokémon and switch Gardevoir with that Pokémon. This power can't be used if Gardevoir is affected by a Special Condition.
Bring Down
しとめる
Choose 1 Pokémon (yours or your opponent's) with the fewest remaining HP (excluding Gardevoir) and that Pokémon is now Knocked Out.
The target for the attack is whichever Pokémon (except for the one using the attack) has the least HP remaining on the in-play zone of both players. Bring Down may target 1 of the player's own Pokémon if the opponent's Pokémon all have more HP remaining than it.[1][2]
If there are multiple Pokémon in play that are tied for having the least HP remaining, the player chooses 1 of them to Knock Out.[1]
If the only valid target for the "Bring Down" attack has an effect on it that prevents any effects of attacks done to it (eg. having Mist Energy or Unown G attached), the target will not be Knocked Out and the "Bring Down" attack does nothing.[1]