Other known variants
x2Dark AidSearch your discard pile for Pokémon Tool cards and Rocket's Secret Machine cards. You may show either 1 Pokémon Tool card or Rocket's Secret Machine card to your opponent and put it into your hand, or show a combination of 3 Pokémon Tool cards or Rocket's Secret Machine cards to your opponent and shuffle them into your deck.
AmnesiaChoose 1 of the Defending Pokémon's attacks. That Pokémon can't use that attack during your opponent's next turn.
If my opponent has Celebi-EX with "Time Recall" in play, can I use Golduck's "Amnesia" attack to prevent the Defending Pokemon from using one of its previous evolution's attacks?
No, you can only use Amnesia on the attacks that are present on the opponent's card at the time of your attack.
If Wooper uses Amnesia on Scyther's Slash, then Scyther retreats for another Pokémon, then that Pokémon [is Switched] for Scyther again, can Scyther use Slash?
Amnesia references the defending Pokemon, when that Pokemon is benched the effect ends.