I'd really like to see Nightshroud from season 4 be a legendary duelist. The version that played a Darkness deck... Maybe Darkess Destroyer for his signature monster?
Yeah, let's include Fujiwara, a duelist with literally 3 cards that actually exist (and the only one that was truely his is probably beyond Duel Links' current power level). He also has no obvious niche they can use to pad his cardpool like Espa's Psychic monsters.
Osa sama
Breno
