Neat. I was going to suggest you make a separate post for your Dread Commander idea but I guess you already did it.
Now I guess the three main Necromancer skills that needs fixing is:
Abomination - As done in my own post
Dread Shade - As done in this post
Skeletal Mage - As I think I’ll make a post about
Mainly I’m thinking about one thing you’ve brought up before with the Archmage skill node. There is one other major thing though that I’ve noticed is that Skeletal Mage abilities that cast skills such as Sacrifice or even Hungering Souls for the Death Knight they only cast the base skill meaning you can’t invest a skill slot into improving their skill as well.
You also have the Dread Phalanx for Summon Skeleton which halves the summonable skeletons by half without giving enough power in return to justify the skill node.
Then of course you’ve mentioned the issues with Summon Wraith. A good concept to be sure but utterly broken under certain conditions because of the no summon limit. They are of course meant to used with Sacrifice if you build for that but then again that can also get out of hand because of the no summon limit.
Come to think of it with so many issues it’s almost like Necromancer would need enough work to call it a rework.
You mentioned redesigning the way Necromancer summons things and while I agree using a separate resource like a Bone Bag might be too much there are other ways to tweak things. I did like your post on it though and gave a vote.
For instance instead of having to summon minions separately they could be max summoned in one button like what the Beastmaster can do. That would certainly clear up not just the Wraith issue but also the issue of running into a boss that AOEs your minions to smithereens and you’re left almost defenseless while dodging projectiles.
Another method would be that most minion spells auto-summons the minions to your cap. With that you could even add a usable minion ability similar to what the Beastmaster has.
Maybe even both where you can summon your cap of Wraiths with one button, maybe they still decay, but then you can use their button to activate their ability. Then you have your Skeletal Mages auto-summoned to their cap and their ability button available to use at all times.
Some things to think about to be sure but alas we can only address 1 thing at a time in a post. Although maybe I’ll make a post linking the other posts with footnotes for easy reading if they don’t want to go into the other posts.