Fan Casting Justice League: Rise of the Legion

The Justice League has been accepted by the public after stopping Steppenwolf. They even have accepted a few new members such as, Vixen, Martian Manhunter, Green Arrow and Black Canary. Lex Luther doesn't appreciate their newly found popularity and decided to change that. He and several other villains decides to take down the Justice League once and for all, using tech from brainiac wrecked ship. Can the Justice League defeat the Legion of Doom. And can they keep the world save while doing so?