Board Thread:General Discussion/@comment-4519633-20141022032431/@comment-24894881-20161205234144

I've figured out a possible theory for Zelena vs EQ and this would be acceptable for the writers to incorporate in the show (but they never will lol)

Regina has simply trained and gotten stronger since S3. And by extension, so did the EQ. Zelena on the other hand has mainly been paying attention to her baby.