rare porygon card Pokemon - 137/165 - Pokemon 151 - Reverse Foil you may draw cards until you have 6 cards in your hand Porygon-Z - 118/198 - Holo

It was definitely an underdog release in Japan. Word of mouth on Japanese playgrounds helped Pokmon surge in popularity, especially because Game Boys were much more affordable than they had been in their heyday

Then you can easily see at a glance how many counters are on each card

Particularly as this card specifically has an ability where the Nidoqueen needs to be in play

Only a small number are believed to exist in mint condition today, and PSA 10 versions can go for as much as $4,500

Long-Term Outlook Increasing Scarcity: As more cards enter collections and fewer remain available, scarcity will drive value higher