Berserker

Berserkers are powerful axe-wielding units that usually promote from Bandits or Pirates. They have high HP, Strength but low Defense, Skill and Speed (though they have greater speed than Generals). Also, they share a special characteristic: they have 15% extra Critical Hit ratings, just like Swordmasters and Trueblades.

In Blazing Sword and Sacred Stones, they have to use an Ocean Seal to promote. Sacred Stones Pirates can also promote into Warriors. In Path of Radiance, the class that promotes into Berserkers, Bandits, are enemy-only, but they can allegedly promote the very same way as any other unit (i.e. with a Master Seal or upon reaching Lv. 21)

Blazing Sword

 * Warrior

Sacred Stones

 * Dozla - a bodyguard of L'Arachel

Path of Radiance

 * Gashilama - a laguz slave trader and the boss of Chapter 14
 * Largo - the husband of Calill and lost an arm in a fight