Board Thread:Character Discussion/@comment-25375217-20161222213035/@comment-25375217-20161222221902

What Regina did to restore Happy Endings was have her blood be used to write away the AU. I mean, you could also attribute that to Henry and call him the Savior, but ehhh. And again, we don't know if she was powerless because she would only get her powers in full once she accepted her role as Savior, and she wasn't in the AU where she was Savior long enough to get the chance to show them off. We didn't see her in enough emotionally stressful situations to see if she had any form of magic before that. Going by Aladdin, she might have accidentally used magic to save Henry, but just because she didn't doesn't mean it wasn't possible. Emma didn't accidentally use magic against Jefferson when he was threatening to kill her.

The spell the Apprentice used on Lily doesn't make sense at all for bad writing. But what we do know is that it fate-bonded Emma with Lily and somehow made Lily a source for the ink, which is supposed to have the dark blood of a Savior apparently. So her connection to Saviorhood is a little bit looser, but I think it's still possible.