After finishing the An Empty Vessel quest, a Blue Mage (BLU) can employ the legendary arts of Aht Urhgan. These formidable fighter-mages employ elegantly curved blades for close combat, while decimating their enemies from afar with fell magic mastered from their opponents.
Blue Mages may learn special abilities (known as Blue Magic) used by the monsters they defeat.
Blue Mage must be set as main job.
The monster must use the ability during combat.
The Blue Magic spell can be learned 29 or less Blue Magic Skill levels below the skill cap of the Spell's Job Level. A capped Blue Magic Skill is necessary to learn Spells as early as possible. See Blue Magic Skill for an in-depth explanation of this game mechanic.
The Blue Mage must not be KO'd when the monster is defeated.
It is possible to learn spells from monsters that are Too Weak for your level.
It is possible to learn spells from monsters that are attacking someone outside of your party if you claimed the monster.
It is possible to learn Blue Magic from BCNM's, Besieged (although to do so someone in your party must land the finishing blow on the mob that used your spell.) , Assault and Salvage.
It is not necessary to be the target of a monster's special ability in order to learn Blue Magic.
Using Blue Magic
Unlike other magic spells, it is not possible to use Blue Magic as soon as it is acquired. First, the spells you wish to use must be set.
Point Total/Maximum. Each Blue Magic spell is assigned a point value (Blue Magic points). The level of the Blue Mage determines the maximum number of points available for setting spells.
Maximum Number of Set Spells. The maximum number of Blue Magic spells that can be set to be active at one time is also determined by the Blue Mage's level. This maximum number may decrease when the Blue Mage is under a level restriction and so the set numbers are assigned a color for easy reference.