Rune Fencer (魔導剣士, Madō Kenshi?, lit. Sorcery Fencer) is one of the jobs released in the Final Fantasy XI: Seekers of Adoulin expansion.
Rune Fencer is the third "tank"-type job, and the first job to specialize in the use of the greatsword. Rune Fencers are intended to use their damage-dealing capabilities to help draw the foe's attention and use their spells and special job abilities to mitigate magic damage.
Rune Fencer's magical attacks and defenses have a strong elemental aspect, determined by which runes they are "harboring" at the time. Built-up harbored runes provide elemental attack and defense, and furthermore can be expended for various effects.