Thanks for taking the time to reply, it feels really good to see a dev do something like this. Make it feel as though the fans are heard!
About the cards not showing up, it's due to them not having a cost. Like Tomb Robber doesn't show up when sorting for bones because he has no cost. Along with some of the others, this is what I was referring to. I understand that some cards aren't in because they are extremely unbalanced in a multiplayer sense!
I wish you nothing but luck, thanks for making such an amazing even better with a multiplayer option!