Option

[Main] ＜De-Digivolve 3＞ on 1 of your opponent's Digimon (Trash up to 3 cards 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, until the end of your opponent's turn, 1 of your opponent's Digimon gains "[Start of Your Main Phase] Attack with this Digimon".

[Security] ＜De-Digivolve 3＞ on 1 of your opponent's Digimon (Trash up to 3 cards 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).