Warframe: The Glassmaker Nihil Boss Fight

This guy was part of the Nightwave: The Glassmaker story, where we had to investigate random people that were Glassed and which led to clues about finding out who did it. Nihil Glassed himself to become immortal, and you confront him in the Cephalon Weave and beat him, Glassing him again and placing him into a Jar Decoration.