One of the 6 classifications of Druja (abominations) used by the Vigil. The Aessuri are those non-Ehoshim entities that are able to access the full power of the Ilios. These are almost always Aalevi, Humani or Urashi and gain this ability either through exposure to a Nepheshite Crystal or by being the Nunnaki child of an Ehoshim. Not only do the Vigil consider both options an abomination, they consider these beings some of the most dangerous entities in the universe. Especially since the Vigil themselves can no longer access the full power of the Ilios due to the Shattering of Aaru. Aessuri make up the majority of those imprisoned within Tantharos. A gathering of Aessuri is called a Pantheon and the discovery of any such gathering is enough for the Vigil to set out on a crusade.