Board Thread:General Discussion/@comment-30644093-20170427085354/@comment-24264679-20170429030933

Emma has never defeated Regina last time checked.

As far as the question is concerned anyone the writers want to.

As far as if the show was consistant then I would say Zeleena, Regina or Rumple. If her magic combined with Regina's couldn't defeat Hyde or even hurt I don't see her defeating the black Fairy. Same with her fighting against the spider Black sent after her. They only way Emma has a chance of defeating Black sis with the sword and that would go for anyone really.