Noxikus

Noxikus is a fictional entity appearing in the online role-playing game World of Warcraft. It is encountered as a boss within the Ulduar raid instance. Noxikus is a mechanical construct, a product of the Titans' efforts to prepare Azeroth for its current inhabitants. Its primary function was to serve as a guardian and a test for those who sought to enter the inner chambers of Ulduar.

The encounter with Noxikus typically takes place in a large, circular chamber. The boss utilizes a variety of mechanical abilities, including sweeping attacks, the deployment of smaller robotic minions, and area-of-effect damage. Players must coordinate their efforts to avoid these mechanics, manage the adds, and deal damage to Noxikus efficiently. Defeating Noxikus is a necessary step for raiders progressing through Ulduar, as it often guards a path or a key element required for further advancement within the raid. Its design is indicative of the ancient, technological nature of the Titan architecture found throughout the game.