Kargen

Kargen, the Technocrat, is a Red Legion Psion Flayer and the boss of the The Insight Terminus Nessus Strike from Warmind. He led Red Legion forces into the Insight Terminus on Nessus, used a Vex Conflux to take control of the local gate network, and reached the core of the Terminus ahead of the Guardians. He is defeated in the strike after his forces are overpowered.

The Insight Terminus returned as a Grandmaster Nightfall. In its boss fight, Kargen starts shielded, and players must stand on Vex plates to remove the shield and make him vulnerable.