((If this would be better suited to Entertainment General or Chit-Chat, feel free to move it.))

I came up with this idea several years ago, but fleshed it out a little more in a conversation with my friend last night. I wanted to see what you guys thought of it.

We have the technology to embed ID code in cards (think amiibo cards), and we have the technology to make full-color moving holograms (like in Hatsune Miku concerts). I had the idea to combine that tech to make real-life TCG duel arenas, kinda like in Yu-Gi-Oh. Here's the idea:

Each card has an NFC tag embedded in it, like an amiibo card, and play happens on a special kind of tabletop that reads the NFC tags in the cards as they're laid down. (The NFC tags could be positioned to one side in the card, so the table would know whether the card was played upside-down.) When a card, especially one of a creature or Pokemon, is laid face up, the table reads that card's NFC tag and produces a hologram of that creature or item. The hologram could be static, or it could play an idle animation like in an RPG. When you use a certain attack, the creature animation would change to reflect the use of that attack. This signaling could be done either via voice command, or via a touch panel that pops up when you lay the card down that lists the creature's attacks and abilities.

This would be tricky to implement across the board for existing TCGs, but I thought of a workaround: this holo-arena idea could be a specific tourney format, and you'd have to place an order with a specialty company to get a holo-arena-compatible version of your deck. That way, manufacturers wouldn't have to expend the effort to make NFC versions of every card in circulation to appeal to a niche crowd, and tourney-goers could still buy whatever cards they want and build whatever decks they want.

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