[When Digivolving] Trash 2 digivolution cards from the bottom of 1 of your opponent's Digimon. [When Attacking] If your opponent has a Digimon with no digivolution cards in play, you may play 1 level 3 Digimon card and 1 level 4 Digimon card from this Digimon's digivolution cards without paying their memory costs.