When you would play this card, reduce its memory cost by 3 for each Digimon and Tamer your opponent has in play. [On Play] [When Digivolving] <De-Digivolve 1> on all of your opponent's Digimon (Trash up to 1 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, delete all of your opponent's level 4 or lower Digimon. [End of Opponent's Turn] (Once Per Turn) Delete all of your opponent's Digimon with the lowest play cost.