Board Thread:General Discussion/@comment-24339224-20141128015634/@comment-24936039-20141130011725

Puggles52 wrote: If Ingrid was looking for replacement sisters, why did she wait for emma for so long instead of trying to get Maleficent, Regina, or Zelena? I understand that Maleficent and Regina would have been a long shot but Zelena felt cheated out of a good life by her sister, so getting another powerful "sister" would be a good thing for her, and she could have been happy with eachother (and elsa). Zelena also had trouble embracing who she was (turning, but not quite yet, green) so she could have been a great candidate. I understand she already, basically, had Elsa, and sure Emma is a good choice, but why wait for so long when there was one in Oz for most of the time?

Why Emma instead of Regina or Zelena (or Cora or Maleficent or the blind witch or scores of other female magic users)? Simple, because Emma is the one that the Sorcerer chose to reveal to fulfill the hat deal with Ingrid for "a perfect magical sister".