Supergirl #4

In "The Borrowed Brain!", Supergirl [Linda Danvers; Kara Zor-El] intervenes when a mysterious student, Terry Blake, suffers a severe head injury during a reckless jump into a swimming pool. After saving his life with a daring neural transplant using her own Kryptonian cells, she unwittingly grants him extraordinary abilities—only to find him transformed into the cunning and dangerous Super Scavenger [David Grahm]. As the line between savior and villain blurs, Supergirl must confront the unintended consequences of her heroism, while Sabra and Professor Nar-Kor become entangled in a crisis that tests the limits of science, identity, and the price of power.