User blog comment:Xilinoc/Ch. 683 - The Dark Side of Two World Ends/@comment-25359524-20160721233111/@comment-25359524-20160725185642

And now, what does Aizen have to do with Mimihagi and the Soul King? Mimihagi's thing was also stupid, by the way. How could Aizen be so special when he couldn't even beat Yamamoto in a fair fight? He was not even deemed "dangerous enough" for the Royal Guard to take action against him. If he could see everything coming from Ichibei, who, along with Yamamoto is probably the strongest Shinigami ever, how could he not see Aizen's trickery? Also, Yhwach already absorbed Mimihagi and the Soul King, so whatever it was that they had that were "blocking" his powers is gone and now is a part of him. It would be stupid if Aizen had an even more powerful "something".