Board Thread:General Discussion/@comment-31464540-20170306233926/@comment-31828520-20170505222510

One thing I would have changed is that Rumple wouldn't have killed Zelena but instead Zelena and Regina would get sucked into the time-travel spell together. The time-travel spell goes horribly wrong and doesn't take them to just one moment in time but instead multiple moments from both of their pasts showing that the sisters have much more in common than they realized. During these moments in the past Regina and Zelena would have back and forth battles (while also trying not to alter the past) with Regina eventually discovering her light magic and defeating Zelena. During the last moment of time the two would visit, it would be revealed that they had met previously before Cora wiped their memories.

I also wouldn't have made Zelena so powerful. I would have at least allowed Regina to scratch her but still have the prophecy be that only the strongest purveyor of light magic could DEFEAT her. Maybe add something else to the prophecy that would forshadow that it is Regina who will defeat Zelena much like how it was done in Harry Potter "and he will be marked as his equal..." or something like that but of course not be so evident until near the end of the season.

I would also have the Wizard of Oz story play out over multiple episodes and introduce all the familiar characters (Scarecrow, Lion, etc.). Maybe even have it where Zelena had brought those characters with her to the Enchanted Forest as her prisoners and thus have them be transported to Storybrooke when the 2nd curse was casted by Snow.