Its like literally the bottom of the list of things to sort out if society began to transition to a new type of economy/society, but I spend way too much time thinking about it.
Would physical TCGs even exist at all? Would it be like Triple Triad shit where every community has its own fucked up version of the rules? Who makes new cards, and how do we agree what is and isn't legit? Do we like, go on the internet and elect the Secretary of Yugioh?
Fuck, man. A lot of my hobbies are hard to imagine outside of a capitalist system because I have no real idea how hobbies work outside of the one economic system I've ever existed in.
Gosh, the whole point of these things was to turbocharge consumerism by making people want things they don't have. Not only do they have to buy dozens of booster packs every time there's a new expansion, but they have to pay hundreds of dollars to make a deck with the chase cards. Every expansion only has a couple of cards that are actually good.
Card games yes, collectible card games no. Buy a box and it's got everything you need in it to play the game. Basically gaming before 1993.
I feel like you could have digital trading card games with the fun of unlocking and trading except it doesn't cost money, just as a gameplay mechanic. Like the Yu Gi Oh games of the PS1 era or something