Servant of the Eyes

A "Servant of the Eyes" is a level 22 Hive Knight that is found in the Skywatch in Old Russia. It spawns during a ritual. If disturbed, it will try to kill you with a Cleaver. If you attempt to steal its treasure, a Tombship will spawn and deploy 3 Acolyte Ultras called the "Eyes of Crota" who wield Boomers. More of these Servants will continually spawn until the Eyes are killed. Chosen Thrall will spawn as well.