I think you need enigma + dweb to be really effective, or at least just enigma. -psn res is very important for your psn to actually kill, but I ran a p8 pits necro without deaths web and it was pretty fast (pits mobs are easier than say chaos mobs).
You want 1 pt into revive for the minions to take hits while you tele and while psn works em down, insight iron golem and infinity Merc is best, but it can just be insight Merc and whatever golem on budget. Cast lower resist, nova, cast amp, and then start clicking CE for a corpse that should be there by now.
It takes some getting used to, but with minions + bone armor you can be pretty safe, and as you improve skills and damage you clear the whole screen which is always fun