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Supergirl recap: Season 3, Episode 16 - Entertainment Weekly

: The episode ends with Purity and Pestilence breaking into L-Corp to rescue Sam. As they join hands, Sam fully transforms into Reign, and the three Worldkillers fly off after uttering the Kryptonian phrase "El mayarah" —stronger together. Technical and Production Notes You have requested : Supergirl.S03E16.MP4.LEG.B...

: After a failed initial attempt using Legion DNA, the team manages to extract a sample of Pestilence's actual DNA during a confrontation, allowing them to synthesize a working cure for the infected. Philosophical Conflict: Kara vs. Imra Supergirl recap: Season 3, Episode 16 - Entertainment

The episode's emotional core is the debate over how to handle the Worldkiller threat. Philosophical Conflict: Kara vs

: It is revealed that Imra and Brainiac-5 went behind Supergirl's back to track Pestilence , a move that briefly strains their partnership until they reconcile to save the city. The Reign Revelation

The episode begins with a rapid, frightening outbreak in National City caused by Pestilence , who is eventually revealed to be Dr. Grace Parker.

In the Supergirl Season 3 episode "Of Two Minds," the narrative centers on the arrival of the third and final Worldkiller, Pestilence , and the ideological conflict it sparks between Supergirl and the Legion of Super-Heroes. The title refers to both the discovery that Samantha Arias is Reign and the clash between Kara's morality and Imra's pragmatism.