 A renowned psionic warrior and assassin, Zeratul is somewhat secretive and calculating, but is nevertheless honorable and loyal to his species.He teaches Tassadar how to use dark templar energies and facilitates the final attack on the Overmind by slaying several cerebrates.Following the death of the Overmind, Zeratul tries to put in motion the reunification of the Khalai survivors with the wayward dark templar and unmask the secrets of Samir Duran's experiments.