Board Thread:General Discussion/@comment-26346951-20150716173453/@comment-24674051-20150716181652

What Kingfan said is correct.

Which makes that wand very dangerous for either Zelena or Emma, because either one of them could open the portal again at any time. And all they'd have to do is take other magic users through the portal, and soon the whole Rule of No Time Travel is completely Null and Void.

I hope that particular plot device is left buried.