I found a really cool way to play CAH on desktop (idk how it works on mobile. my phone has been slam dunked to its death so i cant test it) but its fully customizable and if everythings loaded into excel, one can export a list of cards other than what has be preloaded into the game
Until I played one of the Carmen games from 1995 with Lynn Thigpen, and I found a note left behind from one of her agents, I didn't realize that Carmen pays her people too Lol