Looking Back on the Good Times
Effect: [Main] Trigger <De-Digivolve 1> on 1 of your opponent's Digimon. (Trash a card from the top of one of your opponent's Digimon. If it has no digivolution cards, or becomes a level 3 Digimon, you can't trash any more cards.) Then, if that Digimon's play cost is 4 or less, delete it.
Inherited Effect: None
Security Effect: [Security] Add this card to your hand.