I have to admit, I was a bit surprised at Setsuna's shadow being turned into a monster, it's not really a thing the way wigs or dogs are. Oh well, it helps Setsuna to achieve closure and does put out a nice fight scene, and that's the important part in all this.
That said, while I certainly have been enjoying the Setsuna storyline, her descent, rebirth, and recovery, we've been on this for about 8 episodes in a row now, so hopefully it won't be too much longer before we either get a new storyline going and/or some episodes on Miki and/or Buki.