Hi there! Thank you for taking input for your lovely game. One of the most difficult things about buying packs is when you open and survey them, you may want to add them to a deck right away. It would work to instantly find one card because they’re highlighted as new when going to the first deck you want to edit. As soon as you go to the second, you would have to memorize the card name or search through keywords till you find it. I suggest being about to “heart”, “save”, “move to folder”, etc, cards from the open packs. Even simpler (conceptually): Give each personal deck have a section to drop potential cards rather than a list of hearted cards.