User blog comment:Rafe Adler/What DC villain should join the Arrowverse?/@comment-20053828-20160620053030

Darkseid. On Supergirl. He can be corrupting Superman to be with him, take over the world. Once Kara hears of this she can come to Metropolis. Try to convince Superman to ome back to the good side. There can be many great themes if they can have a little episode about it. Though it can be saved for later when we get to know Superman a little bit. Darkseid can be in Season 3 when the Arrowverse starts doing more crazy things for Supergirl to follow up. Like Black Flash.