FitzTheRuke
Legend
Proficency with cards gives advantage on checks with cards, right? Or did I read that wrong?
There's some confusion in 2024 - pieces of the rules seem to be written with the idea that the Xanathar's Guide method of tool proficiency giving advantage on skill checks whenever both might apply (IE, you'd get Advantage on Deception checks to bluff while playing cards, if you have card proficiency) is still in effect, whereas other parts of the 2024 rules seem to replace that whole idea with a new system - one that's somewhat half-baked. (For example, the DC it lists for, say, jamming a door with Carpenter's tools is dc20 - but with an iron spike it appears to be an auto-success). Something in the middle of those two seems more appropriate to me.
Meanwhile, the RAW rules listed for Three Dragon Ante (the game being played here) are:
DC 15 WIS check to determine if someone is cheating. DC 20 WIS check to win the game. Presumably if you are proficient in Gaming Set (Three Dragon Ante) then you get to add your Proficiency Bonus to your WIS check.
It's not much, and it's not great. For one, I can't believe that they think that Wisdom best represents the ability most associated with skill at gambling!
For my home games, I pretty much gave up on all that and made all of the tools into another category of skills based on professions. So you'd have "Cartographer", "Tinker" or "Smith". Or in this case, "Gambler" - if you have the corresponding tool proficiency.
SO. For this game? I guess the important question is: What do you want to achieve, and how do you propose to go about achieving it? Can you break it up into three easy-to-grasp steps? I do love a "Three-Check-Challenge". Can you think of three skill-related checks appropriate to your goals?
As an example, I'd imagine Deception, Insight, and Sleight-of-Hand would be the three most appropriate skills to cheat at cards. If you have proficiency it Gaming Set: Three Dragon Ante (I'll accept it if you haven't picked the specific "Gaming Set", but otherwise have the tool proficiency) then, sure, you can apply advantage to those three checks.
Huh. Long way of saying, "Yeah, sure".