Board Thread:General Discussion/@comment-24589671-20150301134730/@comment-24757127-20150305182412

We can infer that the Dagger is the most powerful magical object in the series. Even more powerful than fairy wands. The Dagger channels the Dark One's powers directly. I think because of the Daggers magical powers it can achieve difficult magic you wouldn't be able to do with normal magic.

Also the Dagger is using dark magic. A different type than light and more powerful than Regina's dark magic.

I'm curious, with Regina's change of heart going from villain to hero wouldn't that inner conflict affect her magic? She's always had dark magic, but that's generally used for evil things.