toy cards yugioh Magician giving each purchase that classic “Heart of the Cards” surprise reveal. Toy Magician - Yugipedia

Some modern sets, like Rebel Clash, feature Trainers as some of the most valuable cards in the entire print

Those of his ilk will remain on battlefield after being called forth and fight on the summoners behalf for a few turns, before unleashing a final impressive attack and vanishing

You can also buy the new Traveling Chocobo cards, which even had their own teaser trailer featuring a limited edition Gold Chocobo

One reprint that I want to point out not thanks to its value but how good it is, is Kess, Dissident Mage

The cherry on top is the high defense, which enables it to attack well and block incoming attackers