The card game idea could be interesting if done correctly, I'd play it! It has such amazing potential!
The average deck must have 40 cards and cannot exceed 60 cards. consisting of whatever you make of it. Random booster packs of PLL algorithms, OLL algorithms, F2L, and cross moves. Game starts with each player having 8 cards. Then there is an inspection time, at which point you can "swap" (putting the card back in the deck, picking up next in deck) up to 10 cards. The game also requires a dice, (the way I'd imagine it)
Once inspection is over, each player rolls a dice determining the number of moves required to solve the cross. Then you have to play that number of "Turn/setup move" cards, (Yea, I know the cross can be solved in a max of 8, but the 1-6 dice is tough to modify to that standard) Then you take turns playing F2L algorithms to a total of four,
Of course, now we have OLL, and each card is labeled with a various numbers of digits ranging from 1-6, based on difficulty of the algorithm. More difficult algorithms will have larger number of digits to increase probability. For example, an algorithm like F U R U' R' F' will require a roll of the dice to land on 1. But an algorithm like case 39 (Dan's cube station) will respond to 2,3, and 6. And PLL can be done the same way. If you doesn't have a card with the dice number, you can choose to re-roll or swap one card.
Various methods could add variety of gameplay. The Petrus method could be interesting, because uses less algorithms but requires more dice rolls at the end of each step. We could also include other versions of cards, like CFOP cards could be red, Petrus could be blue, turn/setup cards could be white, and "factor" cards, could be black, involving various cards like "stage skip", "Silicon", or "Rubik's Thumb", changing up gameplay.
Yea, I'm dreaming, I know, but its always fun to think...
lol not so sure I'd collect the cards if it was any other way, but I'll see...