Here are the rules: Ignore all rules with Paradox Playing Cards. The midnight black backs of Paradox Playing Cards contrast with the mystical, blue-dotted swirling circles, suggesting chaos -- yet every line is meticulously placed in defined order. You will be drawn to the look and feel of this deck. The Joker playfully plays off of the Paradox theme by using a ? (question mark) as the pips. The tuck is adorned by an intricate red-and-white custom seal. The court cards carry over the vibrant blue and gold from the backs.