Bards often serve as negotiators, messengers, scouts, and spies. They love to accompany heroes (and villains) to witness heroic (or villainous) deeds firsthand, since a bard who can tell a story from personal experience earns renown among his fellows. A bard casts arcane spells without any advance preparation, much like a sorcerer. His magic emphasizes charms and illusions, and the bard can also play an inspiring song that strengthens him and his allies. Bards also share some specialized skills with rogues, and their knowledge of item lore is nearly unmatched.
Characters with 4 or more levels in the bard class are able to wear light armor (up to AC 3) without increasing arcane spell failure.