In addition, he somehow sundered Luke Skywalker's spirit from his own body, resulting in great confusion and dismay amongst Luke's then-few Jedi apprentices. As depicted in the novels Dark Apprentice and Champions of the Force, Kun's spirit was eventually outed and destroyed by the combined efforts of the Jedi apprentices, Luke's spirit, and the long-dead spirit of Kun's slain master, Vodo-Siosk Baas.
You think so? Why... These guys won't be able to work together...
ROTJ Luke and ESB Luke would fight together being losers and die fast, you have to see this. Sidious easily took care of those weak ass council members and they were more powerful then those two. Kun could destroy them in seconds.
AOTC Obi and QGJ would probably work together, but neither one of them has a chance... Especially not Obi who will be smacked around with the force.
Then its QGJ and Vader..
All Exar has to do at the start of this fight is activate his lightsaber, easily take care of two jump away and then use the force to defeat some of the others. Once they are gone, and he will take them out he can move on. And I don't give Vader or QGJ much of a chance.