Looking at the name “rune fencer” it is actually not a magic based job, as they will be consuming runes to gain special effects. To give a bit more insight into the actual name, I will share a quick Japanese lesson with you all. Red mage, black mage, and other “mage” jobs utilize the kanji
“魔道士” which denotes a mage or wizard-type role. On the other hand, rune fencer in Japanese
is “魔導剣士” which uses a slightly different kanji “魔導.” Both are actually pronounced the same way (madou) but are different in the sense that the latter is used to denote more of a sage-type character. With that said, it might seem to overlap with the image of red mage, but it is in fact completely different.
On another note, for all of you who may still be wondering what the main weapon for rune fencer will be, as many has guessed it will be great sword. However, they will still be able to fully utilize one-hand swords as well.
Attack wise, since they are using great sword, we are planning to have them deal higher damage than paladins. As a tank role though, generating higher enmity than your melee and other damage dealers with attacks alone is quite impossible, so we will be looking into other methods to gain enmity.
In regards to their defensive capabilities, as was stated their specialty is magical defense and elemental resistance, but they will not be able to have all resistances enhanced at once and will have to use runes skillfully to enhance themselves. http://forum.square-enix.com/ffxi/threads/24612-Mystic-Knight-2nd-new-job?p=330991&viewfull=1#post330991