Pokemon Gym Challenge sealed Booster Pack Mercari Was It Worth it? Gym Challenge Pokemon cards are HOW OLD? To celebrate 700 days of daily videos I wanted to open an epic pack of vintage Pokemon cards. Im of course talking about 1999 Challenge Gym Challenge 1st Edition Booster Box Loose Packs Trading Co. 2000 Pokemon Gym Challenge Booster Box 1st Edition FACTORY SEALED Blowout Cards Forums 2000 Pokemon Gym Challenge Booster Box 1st Edition FACTORY SEALED Blowout Cards Forums Gym challenge booster boxes : r IsMyPokemonCardFake