Here’s some background on the S3 villain, Reign. It’s was put pretty obvious in the finale when they specifically said it will Reign. I think that literally no one got that reference since she really isn’t that well known. Reign has been described as Supergirl’s doomsday, but I’m not exactly sure how similar they are. Apparently Reign is a part of something bigger, or what seems like a bigger group of weapons. Reign is sort of like a weapon more than a person. She was created like Bizarro to be “evil”. So she’s not inherently bad she was created that way. I totally picture Kara trying to help her instead of fighting her. We’ll see how they decide to go with this. It will definitely be a test of Kara’s strength.
I wish a small patience bar would pop up under/above me every time someone is testing it. Would be so useful to tell people to back off!