As long as Gengar is your Active Pokémon, if any of your opponent's Pokémon would be Knocked Out, put that Pokémon in the Lost Zone instead of discarding it. (Discard all cards attached to that Pokémon.)
Look at your opponent's hand and choose a number of Pokémon you find there up to the number of Psychic Energy attached to Gengar. Put the Pokémon you chose in the Lost Zone.
The Pokémon Company International is not responsible for the content of any linked website that is not operated by The Pokémon Company International. Please note that these websites' privacy policies and security practices may differ from the Pokémon Company International's standards.
Would you like to notify Pokemon.com administrators that you believe is an inappropriate screen name?
Your request could not be completed. Please try again. If the problem persists, please contact Customer Support.