Jar’Kai relies on the user’s resourcefulness and creativity to succeed, similar to Niman. Two blades are difficult to wield, but the payoff is great. It allows for one blade to be used for defence and one to be used for attack, or perhaps both blades for one. Jar’Kai opens up many avenues of possibility. However, it is extremely difficult to learn.
Another disadvantage to Jar’Kai is that if a Jar’Kai user loses a blade, they could be at a disadvantage for the rest of the battle. And with two blades in hand, the power behind each swing is weaker. To sacrifice strength for precision and creativity is a choice only the user can make.
Typically, a Jar’Kai user will be also very skilled at Niman, due to a similar mindset being used for creativity. However, the two differ in one key respect. Niman users pour their creativity into the Force, relying on it as an ally to perform techniques that other lightsaber users could only hope to do. Jar’Kai users pour their creativity into their bladework, becoming masters of techniques and skills for different forms one could only dream of. However, Jar’Kai users rely too much on their blades and pay too little attention to the Force. This presents an interesting weakness for them.
Requires creativity of the blade. Jar’Kai users must be creative in the way they move each blade, and be mindful of each blade’s relationship with the other.
Can be used with all forms, however, struggles with Niman. The Jar’Kai technique can be used with any form, opening up new avenues of possibility for each one.
Forgets the Force. A Jar’Kai user will be less suited to using the Force in combat, opening themselves up for defeat.
One blade being lost. If a Jar’Kai user loses a blade, it will present interesting avenues of defeat.
Difficult to learn and has weaker strikes.