Spiteful Spirit
Suffering
Life Siphon
Desecrate Enchantments
Shadow of Fear
Conjure Fantasm
Cry of Frustration
Res Sig / Sunspear Res Sig
This build worked excellent for me all the way through and groups went down fast.
I'd ALWAYS cast Spiteful Spirit on the Monks or Mesmers first. Typically the Mesmers to get rid of them quickly. All casters seem to stay together for the most part, so SS was very effetive and My heroes/henches would aggro into the iddle ofthe group, so everyone would always get hit.
Suffering is always a good second cast to get the majority of enemies started on Life Degen.
Cry of Frustration used on any Elemenalists you're up against and also anytime you have Rangers/Warriors with annoying healing spells.
Desecrate Enchatments to take off anywhere from 64 - 100+ damage depending, VERY effective at times. Will strike all enmies around the one you target.
Shadow of Fear I rarely used and you could probably replace, but it IS very useful against those enemies who want to jump around alot.
Conjure Phantasm was used mostly as a great quick way to finsh enemies off AND also as a counter to Troll Urgent and other similar spells. Quick and Effective most of the time.
Life Siphon, easy Degen/Life gain for you. Good to cast on Monks/Bosses to help them along in their death.
Res Sig / Sunspear Res Sig - Obvious

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Anyway, I hope this might help some other Necros out there looking for a good build to use in Nightfall. I had no trouble with Gates of Madness either which I know alot of people do. One shot in and out for that mission
