This shop is recommended for those who want to choose from various types of cards or participate in events to battle with others using Pokemon Card
Youre not supposed to buy and sell your card frequently.And you dont need to do transaction to use it on a blockchain game (that will only check if you possess the card) It is somewhat interesting, but I still dont see the adjacent possible for a killer app.The scarcity is still artificial, and the only thing that is secured by blockchain is ownership, not the information itself.So I see two barriers above and beyond the technical barriers you mentioned
In theory, you can put as many cards in your deck as you want
Spells with cascade or rebound are very good for this purpose
Its a nice reminder that there are other ways to bolster Modern outside of printing brand new cards, and that the ability to pull cards from Legacy and even Vintage suggests the next Modern Horizons set could have players shouting in the streets with excitement
7 Belle's House Tinker Bell, Very Clever Fairy Items are useful cards to have