Illidan… Illidari… Illuminati. Illidan is the leader of the Illidari. Both Illidari and Illuminati start with “ill” and end with i. You know what starts with a letter I? That’s right. Immune system. When your ill, your immune system is attacked. Ill means sickness. Ill has 3 letters. You know what also has 3 letters? That’s right, one. There is one eye on Illidan’s belt sash. The Illuminati has one eye. Illidan is Illoominati confirmed.