Ultimately, I think he wishes he could be the Wizard of the Dead Magic instead of being the Lord of the Dead who is the master of all zombies. Though he has an extraordinary amount of power, he desires more.
And summoning him was my undoing as the Wizard of the Dead Magic. I thought I could control him, but I failed miserably. In fact, I would argue that my brief stint as a zombie minion of Jhophes was the worst period of my life - ever! To be incapable of lifting a finger against him, to know that if he commanded me to do something I would be forced to obey - it was something I never experienced before, and something I never plan to experience again.
I am now free - mostly - of the power of the dead magic. I have turned against it, and I am rediscovering my humanity. I will never give up the power of free will again - not to anyone or anything!
Want to learn more about Jhophes, Balthazar, zombies, and the dead magic? Then download Rise of the Dead Magic, Book 1 of the Three Wizards Chronicles, now.