Venomoth TM 11

Once during your turn (before your attack), you may flip a coin. If heads, your opponent's Active Pokémon is now Poisoned. If tails, your Active Pokémon is now Poisoned. This power can't be used if Venomoth is affected by a Special Condition.

Flip a coin. If heads, the Defending Pokémon is now Paralyzed.