Do you plan to make an actual game or are you making mockups for fun?
Make the Warren Buffet card in a very limited edition like the MTG Black Lotus. Then in 10 years, it will cost 1 Bitcoin - a consolation prize for the FUDders
There is an actual game called Hearthstone, it's where I took the card templates from. I could not make the game myself tho, but I can spit out the Cards just for fun
I know it. I tried Hearthstone a couple of times over the years but never felt the same thrill as Magic The Gathering from my teen years. It would be really cool to have a real Bitcoin card game, but the story must be made really well and cards to be balanced. One of the biggest problems with card cames is card balancing.