Board Thread:General Discussion/@comment-25383187-20160702030413/@comment-996743-20160705045735

In a non-meta way, I don't think Yhwach just want to lay waste on all of existence. He makes sure literally everyone dies, so when they die, all of their power, experience, memories, and other attributes go to Yhwach, so literally, he can't get nothing. So, Yhwach is trying to get all pieces of his soul and parts of the Soul King. He's still collecting and makes sure literally all Sternritter are taken of everything from them, and leave no survivors. He also makes sure he derails anyone who try to stupidly waste his time. I think even Yhwach himself knows he's not in perfect condition or reaching his ultimate potential of his own.

Since he's a Quincy with a quite realistic, no-nonsense personality (he doesn't let people activate or get to attack with an intact Bankai), he doesn't care about the best battles or epic moments. He just wants to reclaim the world and everything in the world is for his taking.