Once during your turn (before you attack), remove the Level X card from one of your opponent's Pokémon. That card is then shuffled into your opponent's deck. This power can't be used if Gengar Lv. X is affected by a Special Condition.
Does 30 damage to each of your opponent's Pokémon with damage counters on.
Put this card onto your Active Gengar. Gengar Lv. X can use any attack, Poké-Power, or Poké-Body from its previous Level.