User blog comment:Creator613/Rahkshi/@comment-2026417-20100821155046

Any Rahkshi can carry a shadow Kraata. In the movie (Bionicle: The Mask of Light), Kurrak(?) had a purple Kraata, indicating that the thing was level seven. I own a shadow Kraata, and usually I just place it in a Rahkshi (Guurahk or Turahk, as of now) for safekeeping.