Alias No information Origin No information Occupation No information Powers/Skills No information Hobby No information Goals No information Type of Villain No information Arbiters are possibly the highest known title for an Elite bestowed upon the Hierarchs during a time of great need. Arbiters were sent on various missions: Taming the Hunters, eliminating the Grunt rebellion, obtaining the Index, assassinating the Heretic Leader alongside his followers and re-activating a Forerunner fleet. An Elite is usually made an Arbiter during a great time of crisis such as Thel Vadam's failure to protect Installation 04. It is said that the Arbiters appear to be the will of the Hierarchs as well as their blade.