Wraith of Jaxion  

Here's What I did. after having a ranger make sure jazion was up, I invised and ran up to the landing described in other posts. I killed the 2 mobs on the landing. Then with ogre illusion, levitation, sow, and invis I jumped on the banner. While facing the wall and looking up if you move forward you will slide right onto the top of the wall. No jumping required. From here I just ran out on to the top of the stone roof. If you go to the top of the roof you can simply run to the invis ramp and forget about going through the building. But I even eliminated that. I targeted jaxion and ran to the roof of the pagoda looking building next to the stone roof. From there you can hit Jaxion with a tash and he came right down and attacked me. I charmed, did the turn in, he didn't aggro, and then gated out with an encanted ruby. Hope this helps.