User blog comment:Ixarising/Crazy/Insane Power-ups/@comment-26322543-20150516115140/@comment-3965848-20150516125629

@Chichi why would Saji armor transform focusing on one SG when it already focuses on all 4 at once, it just sounds like a huge step down, having his armor transform based on his Evil Pieces is sounds a lot better.

Since Evil Pieces can change into Mutation Pieces, meaning there's also a chance for Regulas to change his armor based on his Pieces.