Source: headhuntersholosuite.wikia.com
6. Cicada
David Hersch was your typical wife-murdering psycho, except for one thing: he felt a little bad about it.
So he was racked with guilt, and decided to end his own life for good, buuuuut he got struck by lightning and gained his own speed force-adjacent ability: the power to steal other people’s life forces and add them to his own lifespan. He also became crazy obsessed with The Flash, convinced that the two were united by a shared origin.
Hersch took on a new identity as a cult leader, going by Cicada, a name coined for his lengthy lifespan. He gathered followers who believed that Cicada, if supplied with enough life force – including the Flash’s – could resurrect his dead wife. Turned out, he could! Working with Magenta, Cicada captured and stabbed Wally West with his special knife, absorbing his life energy and that of every person he’d ever saved (which, as a Justice Leaguer, should include everyone on earth, five times over, but whatever), and brought his wife back.
His wife freaked out because, reminder, it was Cicada who MURDERED HER IN THE FIRST PLACE. And Cicada killed her again. The Flash kicked his ass, and then he was imprisoned and shot into space. Look, comics are weird, okay?

