[On Play] <De-Digivolve 1> on 1 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) of your opponent's Digimon. Then, if DigiXrosing with 2 cards, delete 1 of your opponent's Digimon with a play cost of 5 or less. [All Turns] When this Digimon would be deleted, by returning 1 black level 4 or lower Digimon card from this Digimon's digivolution cards to its owner's hand, you may play 1 [SkullKnightmon] from this Digimon's digivolution cards without paying its memory cost.