occultist, or berserker, would make more sense if you are casting on self.
Occultist -chaos res is great in close quarters. However that's all it gives, since my build doesn't utilize any curses and is life based. I also made a trickster with insane life regen in Path of Building. It reached around 180 inc. life. Could potentially be solid, when using frenzy charges.
In the end took necro for the general boosts that you get via auras, and the slight chaos damage boost. Plus if you combine with a horde of zombies you get very survivable. Not to mention the zombies have been buffed and will do decent damage. The necro choice is a better league starter hands down
I have no issues clearing with trash gear and a 4 link on lower tier maps. Did not take necro aegis, but I plan to pick up an (two?) apep's rage.
You can see my char here:
https://www.pathofexile.com/account/view-profile/Saltygames/characters (IMustHaveMyRevenge). I will indeed take all the minion life nodes on this build, but as you can see, I still have room to take additional chaos nodes if I so desire. The northern Corruption cluster would probably be next if so.