Board Thread:Spoilers!/@comment-16953943-20160401020145/@comment-24674051-20160402134432

Ok, let's. First, there was the set up, which cost a LOT of time: research, failed attempt (probably), more research, partial success. Plus the ingredients used do not appear to be used up (Regina got her heart back, Prince Neal is still alive. What DID they do with Rumple's Golden brain, anyway?)

That last part is one reason why I think it might be broken. generally, ingredients are consumed upon use, or at least transformed.

As for Zelena not getting what she wanted, but finding new ways to torment Rumple and Regina, well, things did not work the way she anticipated (she didn't figure on dieing before the spell was complete). but, Zelena is the ultimate opportunist. She has shown a high degree of intelligence, plus a high degree of ingenuity. She is able to see personal benefit in any situation, and take advantage of it. (Marian, Rumple in NYC, Siding with Arthur in Camelot), and who knows what we'll see with her interactions with Hades. Of course, she does have her own costs when it comes to Regina, she is a little short-sighted on that point (blinded by envy, maybe)

No, Zelena just knows how to handle a situation and take advantage of what's there. And as mujch as possible, snhe turns any situation so that the cost is borne by others (The cost for the Time Travel spell was actually paid by Rumple, Charming, Regina, and Neal). The only broken aspect is what I pointed out.