There's something about card decks with their suites and numbers and the potential for interpreting their symbolism in archetypal ways. Jung, famously, was fascinated by the Tarot, as was Christian novelist Charles Williams (see the novel The Greater Trumps). Many gamers have been likewise captivated. The first cards that appeared in D&D, to my knowledge, were the magical Deck of Many Things (in game). Later, cards appeared both in game and with physical decks at the table. The Ravenloft campaign setting had the Tarot-inspired Tarokka deck to do character readings, and Paizo has followed up with the Harrow deck for the Golarion setting. (I can testify from experience that this deck makes a very fun addition to role-playing. It's available for sale here.)
|A Harrow Card|
Note: The method was made with my own evolving house rules of classical D&D in mind, so primary attributes will not be what you are used to. I assigned one of the four classic races to each suite and one of the four classic classes to each suite, and each race and each class have their own primary attributes (except human which gets the free choice of a racial primary attribute and halfling and thief which both share dexterity.)
I hope that these may be of some interest to others, so it's time to step away from hording gaming material other than flavor away and risking a little sharing. Though it's late, from where I am, I can still wish you a merry Mythopoeic Monday.