Look at your opponent's hand and choose a number of Pokémon you find there up to the number of <span class="energy-symbol Psychic" title="Psychic">Psychic</span> Energy attached to Gengar. Put the Pokémon you chose in the Lost Zone.
PsychicColorless
Cursed Drop
Put 4 damage counters on your opponent's Pokémon in any way you like.