Board Thread:Spoilers!/@comment-25375217-20160418024756/@comment-27060727-20160418061152

I think Zelena is going to be the key to defeating Hades. She's the one with the closest connection to him and in arcs past, that's normally the person who "defeats" the villain. Rumple defeated Pan, Regina defeated Zelena, Emma/Elsa/Anna helped Ingrid see the light which led to her sacrificing herself, Belle stopped Rumple, Henry undid Isaac's alternate reality, Emma had to kill Hook + the darkness......Zelena defeats Hades. And if Robin dies in Hades' last episode, then I definitely think it has to do with Zelena, in the name of their daughter.