Board Thread:General Discussion/@comment-6739926-20150118083555/@comment-25926288-20150318233139

The dagger can't be enchanted (My theory is that is was enchanted with the Dark One's curse) it was only added to temporarily to break the Sorcerer's enchantment on the box (Why only the dagger? Why not a sorcerer waving their hand). Gold also wouldn't want anyone's protection spell near his dagger, even though he could take all of them down by himself if he wanted to. I don't know why he didn't just put it in his vault of powerful objects.

I think Ingrid is the most intelligent with Cora right behind her. Ingrid uses her magic the best, by that I mean uses of magical energy. She, in theory, split her power freezing Arendelle, regenerating the ice wall, and regenerating her Viking. Besides the frozen Arendelle, I think it takes a lot (hours) of time for her to set up her regeneration stuff. Cora adapted many spells in her repertoire and learned some new tricks. Did Ingrid have dark magic too or just strong ice magic?

In all actuality, Ingrid could just wave her arm and freeze everyone(Team Mills, Emma) and would technically win. But that aside, we never saw her freeze powerful magic beings though. Dark Magic is open to a lot of interpretation and I feel we haven't seen all of it yet, even if the only spell they have Regina doing is fireball after fireball. At least she did a sleep spell in "Enter the Dragon" and teleported a large object.