The Complete Guide to the Standard & Custom Playing Card Sizes CPP Boxes Rarest Pokemon Card in the world. The Illustrator Pikachu card. Said to be only four in the world, it was one of the only ones not written in English. I just realised, pokemon cards (and other TCGs) are the same size as Bicycle cards, but the average, run of the mill modern playing card deck is smaller (YGO sized?) What was Pokemon Card Dimensions: Exact Measurements And Comparisons