Sharkey, Tyrant of the Shire Well, thats the last of the in-universe cards that are in the top ten, because for whatever reason Wizards decided to save all their interesting designs for the third-party crossovers
Or you may only want to make a single game for you to play with your friends
If you're in a food coma and need something to read while you slump on the couch, why not take a look at the most expensive MTG cards of all time
Yu-Gi-Oh Master Duel can be confusing for old fans
While the vanilla beat stick isnt really as powerful as the anime made it out to be, it at least got plenty of meta support over the years including Neo Blue-Eyes Ultimate Dragon
For individual cards and older booster packs and boxes, you will just have to gain a lot of experience and learn the nuances of real Pokemon products and then make educated purchases, ideally with a means of recourse if it turns out you were scammed (some kind of buyer protection program, etc)