Azure lore

From IvaPedia

The pinnacle of all Blue Mage's training leads to this one ability that can only be obtained by a Blue Mage once they have obtained a legendary status within the realm of Ivalice. After countless hours of studying the monsters of Ivalice, a Blue Mage learns to improve the strength of their lores. Although, it should be noted that Azure lore does not activate on every lore.