Servant of the Eyes

A "Servant of the Eyes" is a Hive Knight that is level 22 and found in the Skywatch on Old Russia. It spawns in 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 Hive Boomers. More of these Servants will continually spawn until the Eyes are killed. Chosen Thralls will spawn as well.