Skills

From Fire Emblem Wiki

Skills are special abilities that units can posses each having widely varying effects, they appear in FE4, FE5, FE8 (although quite different in this game than any of the others), FE9 and FE10. In Fire Emblem: The Sacred Stones skills are only based on classes, there are no personal skills. In Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn, Skill Capacity is also included, which limits the amount of skills you can give to a particular unit.