One Piece has had its fair share of incredible flashbacks and fans have absolutely enjoyed the vast majority of them over the years. Oda is a master of flashbacks and no author does them half as good as him and that goes without saying. Recently, in Wano, Oda drew what is the very best flashback in the entire series which focused on the life of Kozuki Oden. Fans believed that the flashback couldn't be topped by any other in the story, however, Oda has yet again surpassed expectations in the Egghead Island arc, as he drew yet another incredibly well-written flashback.