The Mystic Knight's Strength and Stamina lack behind other similar jobs, such as Knight and Dragoon. The other downside is that to use any of their abilities, the player must have learned the corresponding spell. For instance, if the player does not have the Flare spell, Mystic Knights will be unable to use Flare Sword. Mastering Mystic Knight for all four characters in the mobile and Steam versions earns the player the achievement "One Deadly Blow".