Board Thread:General Discussion/@comment-24942479-20170524113402/@comment-25926288-20170525120659

Emma used immobolization on Henry and Hrunting.

Anyway, this question is relatively unanswerable as we don't know everything that Emma knew before becoming the Dark One. It's like figuring out when did Emma become an expert swordsperson. Who knows when as it was offscreen?

What we do know is that Emma learned how to teleport herself. (As she did teleport objects beforehand.)