Each character has one or more classes that aggregates several special abilities for each character and provides some outlines for the character’s background and social standings. Largely, classes represent archetypes, and not actual careers. Rogues, for example, do not have to be street-urchins and thieves. The high ranking magistrate may be a Rogue. Barbarians don’t have to be savages from the outlands, the poorly tempered barkeep, may very well be a Barbarian, but they might also be a Bard. Ultimately, character classes are a tool for building a character, and not the definition of that character’s personality.
A character may add new classes as they progresses in level, thus becoming a multiclass character. The class abilities from a character’s different classes combine to determine a multiclass character’s overall abilities. Multiclassing improves a character’s versatility at the expense of focus.