My opponent doesn't have a Digimon I can target with <De-Digivolve 3> nocategory of your opponent's Digimon. (Trash up to 3 cards from the top. You can't trash past level 3 cards.) in play. Can I still use this card to delete all of my opponent's Digimon with play costs of 3 or less?
Yes, you can.
Mar. 28, 2024