If you've read the Introduction Series, you know how to leverage the Mixin processor to merge code you provide into a target class. In fact, even with more complex functionality like Intrinsic Proxies ...

I could be totally off but I'm thinking this: four different suits. 1/4th chance to pick a certain suit. or 13/52 = 1/4th take one away from that 13 and now the chances of a second card of that suit ...