Aureolus Izzard (アウレオルス＝イザード Aureorusu Izādo?) is a character from Toaru Majutsu no Index series and is the main antagonist of the second arc of the storyline (anime and light novels). He is a powerful magician and alchemist; he perfected his alchemy to the state where his thoughts are turned into reality which is called Ars Magna.