Board Thread:Boruto Discussions/@comment-33545035-20191020164526/@comment-32440156-20191025051054

Kaguya was a princess. Isshiki was her partner. So, imagine how much stronger   isshiki has to be than Momoshiki. It's like you are comparing any average jonin with Kakashi. Just because their rank is same doesn't mean their powers will be same. Isshiki is probably the strongest or at least one of the strongest otsutsuki out there.