User blog comment:Eobard95/Next Crossover Idea: Justice League vs Legion of Doom/@comment-27673963-20170418041539/@comment-26624146-20170418044151

Oh? I don't recall seeing Grodd or Killer Frost or Black Siren or Deathstroke. I also don't recall seeing Green Arrow or The Flash anywhere or Supergirl for that matter. I know the Legion of Doom were the villains of LOT Season 2 but they would be stupid not to utilize that concept again in the present day Arrowverse shows, considering how often we're getting Justice League equivilant team ups in the crossovers.