I wouldn't say having a self rez is important for Pain Domination. When you combine world of pain, tough, and a shield from an epic pool, you can get more than 65% resistance to smashing and lethal on SOs, the two most common damage types. Combine this with a self heal in Nullify Pain, and you can be pretty durable.
I've been away for a while, so I would like to know how to re-do my electric/pain domination build, to take advantage of the inherent fitness.
I'm really looking for two builds, one that focuses on the pain domination, and one that focuses on the electric. Currently, I do not have much for IOs and incarnates, but including those in the build idea would be helpful.
There are somethings that I am almost sure that are good to keep. Dark mastery is one, as that would be my only self res. Hover is another, taking yourself out of melee range is a very good thing. I'm not sure about burnout yet. It seems exciting, but I do not know if it is needed.
Anyway, all ideas would be helpful.