Although this is from a long time ago, I checked how the wonder card was being pulled. Because the card was connected to the wonder card id and there was no written message anywhere I could find, just a title, it was likely that it was legitimate. But, just to be sure I tested to see if the main message changed languages if put into another game. Since there is no message set in the real event, (the game, depending on the region, responds to the id in a different way so the card can be put into different languages) if it changed, it really was pulling the card from the code and not from a message someone set. And, lo and behold, I popped it into a Japanese rom (same file as before) and the title remained in Korean, but the main message did change to Japanese! Meaning that this is practically guaranteed to be legitimate!