If you want to be precise, it doesn&#x27;t make sense to talk about _one_ shuffled or randomized deck.<p>Randomness strictly speaking only makes sense for distributions, not for particular instances.<p>If you have any probability distribution of permutations, then shuffling doesn&#x27;t make it less random (ie doesn&#x27;t decrease entropy), no matter how bad your shuffle is.  As long as your shuffle does not depend on the state of the cards.<p>A random shuffle might, by chance, return a specific deck into a fully sorted state.