Young Justice Season 3 Episode 7 - Evolution Episode Title:Evolution.Episode Description:Cassandra, the daughter of Vandal Savage, reads a diary recounting his history. It details how Savage became immortal, his first encounter with Darkseid, and his first time defeating Starro. In the present, an alien armada threatens Earth, forcing Savage to confront them with the Warworld. He soon learns that the armada is being controlled by Starro and goes to face his ancient foe. Meanwhile, in Happy Harbor, Dick, Artemis, and Connor train and bond with Brion, Violet and Forager; giving them their supersuits and codenames. Violet chooses Halo, the name Artemis gave her when they first met. Brion christens himself Geo-Force, after the name Dr. Jace gave his family's power. Forager stays with his own name. Halo also discovers a new power, a green aura that creates holograms, when it duplicates her physical self.