When Supergirl Season 3 Will Return To The CW

As a Worldkiller, Reign was already arguably Kara's most dangerous foe over the series to date. The Girl of Steel has been outmatched in her showdowns against just the one Worldkiller so far, and the only big win the good guys got over Reign so far took the united efforts of Kara, Martian Manhunter, and the Legion of Super-Heroes. The very bad news is that there are more Worldkillers out there, and Reign managed to get her hands on another: Purity. Although Purity was determined not to be turned into a villainess, Reign hasn't failed at much yet. If Reign turns Purity and recruits the other Worldkillers who are still out there, the good guys of National City might not stand a chance.