Knowing one set of cards or another isn't really a super power. The power would have to be a specific, universal one - knowing what will happen in the near future, some sort of xray vision to allow you to see through cards, or mind reading.
Fortune telling would have better applications such as roulette
, sportsbooks, stock market, etc. I'm not sure how mind reading would work since the average poker brain would alternately have a lot of things going through it or nothing going through it while the player tries to suppress their tells. That leaves seeing the underside of cards which could also have applications in blackjack
or maybe something like baccarat
I've spent way too much time thinking about this.