There are many Jedi who prefer to use two lightsabers at once in combat. Some use one for defense, and one for assault, while others use the additional weapon to press their opponent's defenses further. In any case, the use of two lightsabers at once is a very difficult task, require exhaustive and specialized training.
Usage
Several Lightsaber forms of combat can make the use of a second lightsaber. Shien and Sokan have special techniques that only can be accomplished with two sabers, and Jar'Kai Niman is a form built entirely around the efficient use of two weapons.
Availability
The use of Two Lightsabers at once is restricted to those who have reached the rank of Equite 3. Those below this rank are not permitted to train with them, nor display them on their dossier. however, one must train in either Jar'Kai Niman, Shien or Sokan to effectively use them. Those wishing to use custom dual lightsabers must first acquire the rank of Equite 4.