“I became master's student before you, and I was stronger than you. Yet, he gave Excalibur, which should have been mine, to you. Why, Merric? Is it because you're a noble of Altea? I was so angry. I believed I was going to be master's successor...”
—Arlen to Merric
Arlen (エルレーン Erurēn lit. Ellen; translated as Elrean in fan translations) is an enemy and playable character in Fire Emblem: Mystery of the Emblem and Fire Emblem: Shin Monshō no Nazo ~Hikari to Kage no Eiyū~. He is leader of the mage army of Khadein. He is Wendell's first disciple, and Merric's bitter rival. Having aligned himself with Archanea, he uses the war with Altea as an excuse to attack Merric. He confronts Merric, revealing that the reason Arlen dislikes the young mage was because Master Wendell chose Merric to receive Excalibur instead, due to Arlen's lack of a caring heart. He joins Marth's side after being shamed by Wendell, who tells him that he's following Gharnef's path by letting his jealousy overcome him. After the war, he became a High Bishop and worked tirelessly to restore the city of magic.
In both Mystery of the Emblem and Shin Monshō no Nazo, he appears as an enemy unit in Chapter 10. Have Wendell speak to him to recruit him.
Tome - C
Arlen has very lopsided stats for a magic user, but he is not a bad unit when trained. He has low luck, but good skill and speed. He can get very high hp; he can also get good defense, but this is compensated with unusually low resistance, meaning he should be attacking physical attackers instead of magic users.
Shin Monshō no Nazo ~Hikari to Kage no Eiyū~Edit
"As a pontifex of Khadein, Arlen strived to restore the City of Magic. His strict personality earned him the respect of his students."