The reason I chose them was because Libra came from my favorite ever run of  'Justice League of America' and he's never been used again. He was a character who had stolen all the powers of the Justice League, but then couldn't handle it and ascended to some kind of screaming godhood where he became a million transparent body parts spread across the sky. So I thought if I was doing a thing about the New Gods, he'd be an interesting guy to bring back because I needed a masked mystery man to start a new recruitment drive for the Secret Society of Supervillains (sic), because they become almost a terrorist sect. Under Libra's guidance, they start doing quite bad things, even to superheroes' wives and families, crossing the line. So there's that element to the story and I needed a masked guy, who people didn't really know that well. And I remembered Libra and the fact that he is connected to this ascending to godhood thing tied him in really quite nicely. What's really going on under the hood will be revealed later in the series.