I believe this could be done on live if you have good enough gear, and also i'm sure a pally could do this too. Heres the video I made, hope it's an exploit. You basically get mind controlled by a totem and since noone else is there it resets and Jin'Do evades for a second and you go to full health, then you just rinse and repeat
[ame=http://www.youtube.com/watch?v=Wt2mheQ1Eh0]YouTube - Zul'Gurub Solo Jin'Do[/ame]