I'm thinking of Yu-Gi-Oh and other TCGs, but I'll take anything (ex. a fantasy story about their equivalent to poker players). And if you know of any stories that include any sort of card game (even for just one chapter), I want to see that too.
The Draw of the Unknown
"Mia Campbell is your average introverted loner. Not exactly satisfied with her life doing pretty much nothing of import, she's also not that willing to break out and make a change. Until, without any preamble or warning, she is bestowed with a cryptic system that both grants her magical powers, and also operates on the logic of a card game. Things begin to escalate from there."
unfortunately that's the only story with card games in them that I've (as far as i remember lol). Good luck finding more!
I have a story in mind based on the online cardgame at www.elementsthegame.com
However, it's not really going to be a cardgame story, as I'm planning to translate the cards into real-time, magic combat system. Still highly recommend the game tho. It's somewhat like a variation of Magic the Gathering, I think (?), but with 12 elements to choose from:
Fire, Water, Darkness, Light, Death, Life, Entropy, Air, Aether, Earth, Gravity and Time.
It's not a perfect fit for your request, but I can't think of anything else I've read that even comes close.
I plan for it to be a Cardpunk LitRPG with a world I've been working one, but I'm still waiting on the prompt for the magazine to be announced to really begin figuring out the story for it.