Form X: Nevui was a form of lightsaber combat similar to Jar'Kai, focusing on combat with dual lightsabers.
Nevui was primarily used by those Jedi Knights who received only elementary training wielding one lightsaber but soon after learning the essential basics of it, they switched to either wielding two lightsabers (one in each hand) or a dual-bladed lightsaber (also called a saberstaff). Switching to Nevui was pivotal because of the time needed to master it. Jedi who start learning this form of lightsaber combat later in their Padawanship or Knighthood often fall victim to their misuse of this style, becoming easy targets when not wielding a single saber. Ideally, a Padawan decides whether he wishes to continue his training in one of the more conventional forms of lightsaber combat or decide to proceed to study the complicated and demanding Nevui.
practitioners of this form strive to achieve complete balance between their two hands and harmonize the movement of both. Often, Jedi Padawans could practice harmonizing their hands taking special exercises and realize their mastership of Nevui increased when wielding lightsabers. When the lightsaber is split in two during combat, Nevui can be utilized in dual lightsaber combat as it also requires harmony between the two hands. The Sith cult of Tavion, the Disciples of Ragnos, trained its cultists and reborn to effectively fight with both a saberstaff and dual lightsabers. Many movements they utilized were of the Jedi Order of the Old Republic; not all archives that contained information about Nevui had been destroyed.
Nevui can be used mainly for offense, but it can also defend against blaster-wielding enemies with great efficiency. With practice, a Nevui practitioner could quickly switch between offense and defense like most ordinary lightsaber combat forms. This form suffered from the same as Makashi: the invention of blaster rifles. While Nevui practitioners were well-guarded against blaster bolts (unlike those of Makashi), the advantages of having multiple blades were no longer usable. Sometimes, a Nevui practitioner admires his one-bladed fellows for the swiftness they can neutralize their blaster-wielding opponents. A Nevui practitioner has to spend much more energy for combating blaster-wielding adversaries. The greatest of Nevui weaknesses come from combating blaster-wielders: the Jedi might get easily outnumbered and vulnerable by multiple blaster-wielding enemies, especially from multiple directions.
A Nevui practitioner is very practical, has outstanding dexterity, and lacks no patience to learn all its moves. More often than not, a Padawan abandons his studies in Nevui and reverts to Shii-Cho because of the time, energy, and enthusiasm required to master Nevui. Unlike other one-handed lightsaber forms, having an elementary education in Nevui didn't help very much; Padawans are often required by their Masters not to use two blades until they find their students prepared for such. For survival, Shii-Cho was more usable than Nevui for relatively inexperienced and untrained Padawans.
Because of its nature, Nevui is also compared with Jar'Kai. The most significant difference between the two styles is that Nevui can be used for both wielding two lightsabers or a saberstaff. A Jar'Kai practitioner, on the other hand, must specialize in either the use of two lightsabers or a saberstaff. Fighting with two lightsabers was more common because Darth Maul's emerge with a saberstaff was preceded by hundreds of years without a saberstaff. However, there were some unique examples for Jedi using saberstaffs during this period.
Of many of Revan's followers (both during the Mandalorian Wars and his quest in the Outer Rim that followed it) made use of Nevui, but Jar'Kai was slightly more popular.