>>32733684People always say 5, but I think most of them in their debut games were just prominent enough to escape it. Maybe Maractus and Heatmor for their relative obscurity within the game, or Vullaby for White players, but that's about it. Gen 2 I definitely agree with, several of them really needed more prominence.
For me I always forget about XY's version exclusive Fairies until I play the game.