User blog comment:Zathronas/Analysis by an Author:Trailer "White"/@comment-10380701-20131221222109/@comment-6830001-20131222011101

There's already a super-saiyan so let's fusion Ruby and Jaune to solve the "issue", even if there isn't really a simple soul XD

I liked Yang's trailer better too because it was contrasting with the 3 others which had mostly fights whereas Yellow trailer has fun included too. It's a difficult choice to do because they are somehow very different from one to another anyway...