Supergirl learned something this night that Alfred once told Bruce Wayne, to which I'll paraphrase "Some people aren't looking for anything logical, like money. They can't be bought, bullied, reasoned, or negotiated with. Some people just want to watch the world burn."
Reign: you are amazing creatures Supergirl, you and i are not so different just like green goblin and Spiderman are the same. Supergirl: no i am not like you, you are murder and are you reference 2002 Spiderman that Tobey margize Spiderman and William Dafoe green goblin talk? Reign: yes and to each it own, i chose my path, you choose the way to be the hero and they found you amusing for a while, people in this city. But the one thing they love more than a hero, is to see a hero fail, fall , die trying, in spite of everything you done for them, eventually they will hate you. Why bother?
Why would they have this character if they know they were going to do crisis on Earth x we already met Karra's doppelganger why would they show another character that's the evil version of Supergirl it's like Zoom and Savitar all over again