Darkrai (GE 4)
Darkness Roar
10
You may have your opponent switch the Defending Pokémon with 1 of his or her Benched Pokémon.
Sleep Hole
40+
If the Defending Pokémon is Asleep, this attack does 40 damage plus 40 more damage. If the Defending Pokémon is not Asleep, that Pokémon is now Asleep.