A new rumor suggests Warner Bros. plans to assemble the villainous Legion of Doom over the course of its next few DC Extended Universe films.

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While Marvel Studios constructed its cinematic universe bit by bit by teasing, and eventually gathering, heroes to battle Thanos in the upcoming Avengers: Infinity War, Warner Bros. is said to be adopting the reverse approach by building the presence of DC's iconic villains, leading to a showdown with the Justice League.

According to El Fanboy, this direction comes on the heels of Justice League's lukewarm critical and box-office reception, with the studio wanting to push away from the Darkseid threat that Zack Snyder first teased in Batman v Superman: Dawn of Justice.

The report indicates a desire to shift away from that kind of cosmic threat, echoed in the Marvel Cinematic Universe by Thanos, and focus on a more Earth-bound enemy like the Legion of Doom, whose origins may be teased in Justice League's post-credits scene.

There, Jesse Eisenberg's Lex Luthor, freshly escaped from jail, meets with Deathstroke (Joe Magnaniello), and initiates discussions of villainous counterpart to the League. The rumors also indicate the Legion's formation will ramp up with James Wan's Aquaman, which could hint at Black Manta's recruitment. There's also the possibility of Shazam's archnemesis Black Adam, who's rumored to be lined up as the villain in Suicide Squad 2, and bringing Jared Leto's Joker into the fold.

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The Legion of Doom debuted in 1978 in Challenge of the Super Friends, an animated series from Hanna-Barbera based on the Justice League. The team has since been incorporated into DC Comics' universe, appearing in several comics, as well as animated and live-action adaptations such as Justice League Unlimited, Teen Titans Go! and Young Justice.

In theaters now, Justice League stars Ben Affleck as Batman, Gal Gadot as Wonder Woman, Henry Cavill as Superman, Amy Adams as Lois Lane, Jason Momoa as Aquaman, Ezra Miller as The Flash, Ray Fisher as Cyborg, Jeremy Irons as Alfred Pennyworth, Diane Lane as Martha Kent, Ciarán Hinds as Steppenwolf, Jesse Eisenberg as Lex Luthor and J.K. Simmons as Commissioner Gordon.