The Intolerable Clock: A Non-Canon Hexarchate RPG

[Possibly, but now that you mention it, here is even more of a tangent! One can approximate a perfectly random shuffle of an n-card deck using 1.5 log₂ n riffle shuffles. For a 52-card deck, that works out to around 8 shuffles. Mathematically, splitting the deck and shuffling 8 times is equivalent to cutting into 8 piles and then recombining, which is why I used to have a probability textbook with an octopus shuffling cards on the cover.

For a 78-card Tarot or jeng-zai deck, you need approximately 9.428 shuffles for near-random mixing. Rounding up to ten, that means we want a decapod for our ideal shuffling: perhaps a crab, or a crayfish.]