I really like the play style of core condi necro but I have some issues with it which I hope to share with you today:
Seemingly, developers are pushing core necro into being a tank which I feel is a mistake. The evidence of this is in the last few balance changes which buffed defensive traits but laid down heavy handed nerfs to corruptions and doom of course. Core necro is more fun as a high risk/high reward class that relies on clever, strategic use of spectral walk and wurm to stay alive. Of all classes, playing necro should test your inter-class knowledge the most, so that you know when to corrupt, and when to burst them with condis. You active defense is pretty much solely comprised of two dodges so you have to use those dodges with great care. Tank necro doesn't do any of these things, and pretty much just... exists. To make a long story short, playing a tank core necro is not fun to play and probably not fun to play against! Core necro should be the most strategic class, not a walking punching bag for Pete's sake!
This is kinda similar to point 1 but here goes: the tankier necro gets, the more it relies on passive, trait based sustain instead of dodges, and mobility. This is a big no no. Once again, this is not fun to play and not fun to play against!
If I had to choose between doom with cast time + fear damage and instant doom + NO fear damage, I'd pick instant doom plus NO fear damage! Necro needs instant doom to interrupt heals, it' s major part of the game plan! Is instant CC balanced? NO! of course not! but every class has MULTIPLE unfair mechanics (hello steal). The only heal you can interrupt with the new doom is the NECRO heal, oh the irony! Nerf our sustain all you want, but make us scary, I don't wanna be a walking sandbag!