Hypnoスリーパー

Poké-PowerSleep Pendulum

Once during your turn (before your attack), if Hypno is your Active Pokémon, you may make the Defending Pokémon Asleep. This power can't be used if Hypno is affected by a Special Condition.

If the Defending Pokémon isn't Knocked Out by the damage from this attack, you may choose 1 of your opponent's Benched Pokémon and switch the Defending Pokémon with it.