I disagree since you're comparing them with Champa/Vados, foreshadow doesn't mean character build up, they also came from nowhere.FortuneSSJ wrote:Saiyans, Freeza, Cell and Buu all came from nowhere. They didn't get any build up before their debut and because of that we didn't know they existed, until they were revealed to be the arc villain.Toriyama just brought them from no where.
In other hand, Champa/Vados have been foreshadowed since Super episode 1/2. Champa arc was not their debut.
Saiyans, Freeza, Cell and Boo had build up IMO, they all had backstories as their existence was explained, if I could note characters that came out of nowhere it would be the BoG duo: Beerus, a God that was never mentioned before in the series (ignoring retcons), and his also all powerful attendant Whis that is only said yet to be a "life-form".








