Warning, this article contains spoilers from SundaysSupergirl.
Read at your own risk!
Supergirltook a page out ofThe Flashs book on Sunday!

Credit: Jack Rowand/The CW
Why are you doing this?
The scene in question sets up what we can expect from the Monitors role in Elseworlds.
Clearly, Earth-90s superheroes have failed not only this city, but their universe.
Hopefully, Earth-1s protectors will have better luck with some help from super-help from Earth-38.
Its cool because weve never done that before, saysArrowconsulting producer Marc Guggenheim.
We get to have our cake and eat it, too, and who doesnt like that.