maximum gold yugioh booster box Yu-gi-oh! TCG El Dorado Pack 2 Premium Gold Rares and 5 gold Maximum Gold | Yu-Gi-Oh! Wiki

Also, some cards got a lot worse after rules changes

The 5 most expensive Pokmon cards ever sold +MD High-profile auctions and collectors' demand have propelled certain Pokmon cards to record-breaking prices, making them some of the most valuable trading cards in existence Redaccin Barcelona The Pokmon Trading Card Game (TCG) has captivated collectors and players for nearly three decades, with some of its rarest cards commanding staggering prices at auction

The exact dimensions also help with fake Pokmon card identification because counterfeit cards usually have inconsistent borders, poor cuts, and wrong thickness

At least there are a few that haven't already got a card this gen like Furfrou, Stufful and Tapu Bulu, but at the same time, if you're going to choose them, why not give priority to Gulpin or Munchlax or Fomantis