In this case they feature a 25th anniversary stamp, an etching over the cards like modern secret rares, they're printed on the holofoil paper used for the McDonalds promos, and the Wizards of the Coast copyright has been removed from the Gen 1 cards
Any of these options are more than powerful enough to compete at an FNM or even the Grand Prix level, so the build you choose is mostly about which style you like the most and how much you're willing to spend
The image shown is a stock photo
Cards with low PSA population counts, first edition stamps, and print errors often command premiums
A set made just for one market brings fresh art, new rarities, and special themes
Key chase cards include Moltres & Zapdos & Articuno #60, Jessie & James #62, Rowlet & Alolan Exeggutor #56, Moltres & Zapdos & Articuno #59, Rowlet & Alolan Exeggutor #55, Pok Maniac #61