Merric (Japanese: マリク Marich) is a character in the Archanea games. He is an Altean noble and a good friend of Marth and Elice. Having studied in Khadein before the games' events, he is a mage with the unique ability to wield the wind spell Excalibur, bestowed upon him by his master, Wendell.
Merric appears in Fire Emblem: Shadow Dragon and the Blade of Light, both books of Fire Emblem: Mystery of the Emblem, Fire Emblem: Shadow Dragon, and Fire Emblem: New Mystery of the Emblem. He also appears as a Spotpass character in Fire Emblem Awakening and as a summonable unit in Fire Emblem Heroes.
(Source: Fire Emblem Wiki)