One of the more popular Pokemon from the first generation is Chansey
For reasons likely to do with the weight of packs (the texture and extra ink of an ultra rare can make packs weigh a few micrograms more, making it easy for nefarious sorts to otherwise filter out the better packs), for a few years Pokmon card packs have come with code cards (cards that have a QR code for the online version of the game) with borders or colors indicative of the quality of the cards within
Once you have gotten the most out of their processing power, use them to compute the necessary data to link summon 3 new, all-foil link monsters.
Oh, now that I've said that Okay, you should know that the functionality travels with the counter, so if you find a way to put the counter on an opponent's creature and that creature would die, it'll be exiled instead
Popular characters like Charizard, Pikachu, and Gengar usually draw more interest than lower-demand cards, especially in strong sets or iconic eras
enthusiasts to chat, duel and trade