Analyzing the Mirror Deck for Game Design

It's been a few years since I created the Mirror Deck and posted it on DriveThruCards . As a reminder, it's a deck of cards numbered 1 through 99, where each number can have its digits transposed, so the deck is only 54 cards. I asked some advice from other game designers recently on where to take the deck next. James Ernest was especially helpful, recommending that I look for any rarities or…