A lot of the really expensive cards are also foils, which for the card stock they use for English cards ends up warping quite a bit over time. I knew multiple people who refused to buy foils ever because of this.

Is hardware safe? I mean the circuit has to be correct to work kind of thing. I know embedded people do use AI to reverse engineer things/go through a lot of logs. I have also heard about AI designed chips but seems you have more regulations to go through for selling the resulting hardware.

You can get plastic NFC cards. I bet there are companies that will print and program them.

It must be possible to have flexible paper-like cards because my city has one-time tickets with NFC. Game would be nicer with card stock and not rigid plastic.

“ Pot of Greed is banned in official Yu-Gi-Oh! tournament play in America (TCG) and has been since 2005. It is deemed too powerful because it allows a player to draw two cards with no cost or restrictions, providing a free advantage in any deck. ”

Reminds me of how Black Vise and Demonic Tutor were handled before the introduction of different tournament modes like Legacy.