So many wrong things posted about RDM don't even feel like pointing them all out. They can still use rapier's as swords( I believe those are in the dat files for an class). Also RDM only used bow in XI only mage class that usually uses bow is WHM. RDM has also never been a big Debuffer either something else XI slapped onto the job.


Taken from Final fantasy wiki:

Red Mages (赤魔道士 Akamadōshi?) are members of a hybrid class, able to cast spells associated with either Black or White Mages, as well as wield swords. Unfortunately, the jack-of-all-trades quality of their profession makes them less powerful at each individual skill than the classes which specialize in them. In general, they are only able to cast low-mid level spells,[4] but make up for this deficiency by casting more quickly. For example, in later appearances, they are often associated with the ability to cast two spells in a single combat round (called Dualcast or Doublecast).[30] Final Fantasy XI, while not turn-based, continues this tradition by granting players who play as Red Mages a "Fast Cast" job trait, significantly shortening the period of time required to cast any magic spell. They are also able to access the special ability "Chainspell," which allows the player to both cast and recast spells instantly for a short period of time. In dress, Red Mages are usually recognizable by a distinctive red hat tipped with a white feather.

That pretty much sums what an RDM is