User blog comment:Linathan/Squad Spotlight & Guide: Trial EX8 - Genius' Challenge/@comment-28459386-20160725000050/@comment-26140304-20160725015027

Yeah, for JP, it might be a different case considering Shida is the only other unit in the game that can provide rainbow elements. For Global, there's Allanon and Zeruiah in the mix so the rainbow build isn't really a must. Glad this helped! :)