This is a challenge to any writer. Write a rwby yugioh crossover fanfic. This fic wouldn't have any yugioh characters except maybe an antagonist from any of the series here and there. The beginning would be kind of like dawn of the duel monsters. Remnant would have no knowledge of duel monsters what so ever. Ruby would find a set of cards in a library book and meet stardust dragon, gaining use of the deck. She would keep it a secret from her teammates who would worry greatly about her, and she wouldn't tell them no matter how much they pester her. From there on its yours to work with.