I'm afraid I'm utterly stuck on Normal Diablo at level 27 when playing the Necromancer, and I'm worried I don't quite know how to build him. I'm a bit lost on what questions to even ask, so I'm just going to write what I did.
I gave two basic concepts a shot:
Playing him like a Sorcerer that has minions instead of mana shield
40 STR for gear, 50 VIT for some buffer, rest in MAG. Max resistances, mostly +magic for gear stats. ~75 AC.
I found that I could get to Diablo himself reasonably well, but the skeletons were completely useless and little more than a way to get the AI to stand still for a few seconds while I cast spells at a stationary target.
Diablo would simply execute all the skeletons with his opening "circle of flame", and, lacking buffer, I'd either stand there and die quickly, not able to put out damage fast enough, or kite and fall pray to his "stop trying to cheese me" stomps.
After a few attempts of this, I grew a bit discouraged, and rerolled to be a more Necro-Necro, instead of just a Diet Sorcerer.
Any advice would be appreciated. I'm a tad lost on what to do.Skeletons for days with some light magic
33 STR for gear, 30 DEX for gear, 35 MAG for light spells, rest in VIT. Max resistances, mostly +vit and +mag for gear stats. ~60AC
This gettup was a bit harder in the early-mid game, but the skeleton swarm was much more useful getting through Caves and Hell. I could mostly lean on Lightning where they weren't quite enough.
However, melee elites still simply chew through Skeletons too fast, and I find I can work through waves of regular mobs easily, but the skeletons are impotent against any high-AC melee boss packs. High-level Blood Knight champ packs are an exercise in patience.
I find I can't even get past the Blood Knight boss in Terror's Domain - he kills my skeletons as fast as I can pump them out, and they seem unable to actually hit him. I can somewhat play games where I weave in spells between skeletons, but his tank is massive.
Even if I got through him, I doubt I could get Diablo down like this.