The Pokemon TCG has had its ups and downs since the late 1990s, but its renaissance in the 2020s has been stronger than ever, thanks to a renewed interest in both valuable modern and vintage cards.

With Pokémon's 30th anniversary being Feb. 27, here's what to know about authenticating your cards to determine their worth.

For nearly three decades, Pokémon cards have been a sensation in the hobby. In 2025, Pokémon still rules the Trading Card Game space and has a dominant place in the hobby overall, with 97 of the top ...