I'm a little confused on a few things from 3B. Sorry if they are dumb, or have been answered.
1) In New York City Serenade, Zelena's flying monkey got some of Regina's blood, then brought it to Zelena. Then she said that she could finally get her revenge. Why did she need the blood? To prove her sister was indeed in the EF?
2) Zelena kept trying to take Emma's magic because she couldn't kill her. Why couldn't Zelena kill Emma? Is it still part of the Dark Curse? (Because in An Apple Red As Blood, Rumple states if Emma was killed, the curse would be broken)