1Starry-Eyed Skyrider
Many of them break some basic rules of the game, like D-Boost (allows two draws without drawing the top card), D-Time (forces both players to skip one phase of their turn), and the blatantly broken Unfair Judge (allows two battle phases for one monster, and on the second one, it can attack every monster the opponent controls)
From Reddit threads and conversations at dinner to meeting a FINAL FANTASY fan on a cruise ship and staying on deck to talk about what they'd like to see until the early hours of the morning
What is striking is that these cards, unlike the later Pokmon TCG cards, were mainly focused on collecting and not so much on strategic play
It is currently listed on Heritage Auctions for $324,000 after selling for $216,000 in 2021
Audience Surrogate: Shougo Aoyama serves this role in the movie, being a young Duel Monsters fan who's friends with Yugi