While we still keep seeing a whole range of Japanese cards popping-up, from one-of-a-kind prize cards awarded at tournaments to cards with unique illustrations won in drawing contests, there were still plenty of rare cards that were released outside of Japan too. Have you got any rare Pokémon cards hidden in your collection? Wondering if that shiny Charizard or promo card stashed up in the attic or down in the basement is valuable? You’re in the right place, as we’ve rounded up a definitive list of the most expensive Pokémon cards of all time - along with how much they’re worth, what makes them so valuable and when they last sold for a record-breaking sum.