The Hero (勇者 Yūsha lit. Brave) is a combat physical class exclusive to Fire Emblem Gaiden. The promoted form of the Fighter class, the Hero class is exclusive to Alm. Alm assumes this form during the course of the main plot itself, occurring when Celica meets Halcyon in the Lost Woods. When Alm promotes into this special class, he is, apart from wielding Swords, granted the additional ability to be outfitted with Bows, therefore making him a combination of an Archer and a Mercenary.
Alm also gains an aesthetic change when promoted into this class, one that sees him equipped with a shield. This makes him somewhat resemble the standard Hero class.
Hero class has the highest max HP (182) class base of any class in the series, a trait it shares with class it promotes from and the Dark God class. Due to the way the game handles class bases vs character bases, it's impossible to make use of said class base.
Hero is the only class in Gaiden that can use multiple types of physical weapons.