Board Thread:General Discussion/@comment-26340222-20160409144938/@comment-25926288-20160409211508

Because of plot.......honestly, that's the real answer. Zelena was right there as the group ran off. It's not like they went far.

So, it's plot. Whenever someone doesn't use their power in a sensical way, it's either character or plot. This time it's plot. If we want to know why  Regina didn't kill Snow, it's character or why Zelena didn't kill Dorothy. It's character because Zelena loves to revel in other people anguish and she's not quick to kill (even though she did try to kill them) if they can suffer instead.