Board Thread:Spoilers!/@comment-26179634-20140423043200/@comment-24696378-20140502022311

Something is still bugging me about Zelena's plan. Way back in New York City Serenade, Zelena made a potion from Regina's blood. We still do not know what that was for. We know that she didn't need the blood to get into the castle since she is blood-related. We know that the spell needs a resilient heart, courage, brains and the Snowing baby. But what was that potion for. Was it to test to see if Regina's heart was resilient or is there something else?