Etzali

Etzali (エツァリ) is part of the supporting cast of Toaru Majutsu no Index.

In his first appearance he borrows the appearance of Unabara Mitsuki, the Tokiwadai Middle School principal's grandson. A certain group (the Aztec Organization) outside Academy City became aware of the growing "Kamijou Faction," so they sent him as a spy to gather information there for a month. It is later revealed that he is a member of GROUP. In Volume 19, the rest of GROUP found out that he had a senpai-kouhai relationship with the Aztec magician who was after his life in Volume 15, Xochitl. When Motoharu overheard Xochitl calling Etzali "Onii-chan," he comments that Etzali is a lucky guy, having a sister-type girl that's not related to him, and it's unthinkable for him to go and try picking up girls (referring to Etzali falling in love with Mikoto) when he already has Xochitl.

Abilities
He is a skilled magician from and a former member of the Aztec Organization.


 * Appearance Borrowing: Through a magic ritual using the flayed skin of a person, he makes it into a charm which allows him to mimic the appearance of the skin's owner.


 * Spear of Tlahuizcalpantecuhtli: A replica of the spear possessed by the Aztec God of Venus and disaster which reflects the light from Venus, destroying anything the light falls upon. Since this power is classed as God-like level, humans can't handle the original because it can kill all people in the world that are receiving the light from Venus, so the replica has flaws.

Etzali also possesses two Aztec Grimoires, after defeating their owners in Volumes 15 and 19 and taking each off them.


 * Time related to life and death: Has the combat function of countering against any enemy that holds a weapon, having them kill themselves. It also has a very powerful defensive function, as demonstrated when it enhanced his body to withstand the bullet from "Rabbit and Moon".


 * Rabbit and Moon: Has the combat function of sniping. Uses the bones of rabbits to shoot out powerful bullets. The bones of the rabbit can be substituted by human bones, which can be purchased by obsidian and are strong enough to penetrate a shelter designed to protect against nuclear weapons.

Plot
Three Stories 

Etzali was sent to Academy City for a months as a spy for the Aztec Organization to gather information of "Kamijou Faction". Using Unabara Mitsuki's appearance he tried to get closer to Misaka Mikoto (but he falls in love with her in the process). His fake appearance was discovered by Touma and they ended up fighting each other. After he loses he makes Touma promise to protect Misaka and the world around her.