Board Thread:General Discussion/@comment-25926288-20150928010102/@comment-6344309-20151001004442

8Rob wrote: Emma cursed them

And it seems she is pretty sure no one can break her curse.

But we already know Regina is capable of because she broke Snow's curse

Unless.... Regina went back to evil in Camelot and lost her light magic and that's why Emma is sure Regina won't be able to break it That is true, Snow recast the Dark Curse without a savior being built into it.