Bunker Necromancer
Bunker build for PvE ? Well, I will consider you want to “bunker” in PvP instead, even if, in my opinion, we don’t have enough Life Force generation and life siphon for it, yet.
Chill sigils and runes are definitely the way to go.
Deathly Invigoration, even with a 7 sec DS, is pretty much garbage. You will get more with Vampiric Master, even though it doesnt scale with healing power and that you have only one pet (but the Golem’s worth 3 utility pets when it comes to this trait).
Anyway, why would you give up Plague, a fantastic bunker skill, for a somewhat flower staring pet ? If you decide to go Plague form, take either Mark of Evasion, OR (better, in my opinion) put those 10 points in Curses for Weakening Shroud (10 sec AoE weakness on a 15 sec CD).
With this build DS has 30% increased pool, but your pool is based on health, which is pretty low, due to Cleric having no stamina. And since the only skill that scales decently with healing power is Well of Blood, and that low health makes you vulnerable to conditions, I would get rid of them and take Soldier amulet and Consume Conditions instead. You will have more health and a cleanse to survive conditions.
As a bunker I would also take Foot in the Grave because stability is just kittening awesome.
For life force generation Im torn between staff and axe/warhorn. Here is the tradeof:
+ 7 sec DS that provide stability (instead of Soul Marks)
+ Dark Armor (+400 armor for dagger #2, axe #2 and DS #4) or Ritual of Protection (with 3 wells) instead of Greater Marks
- you will miss a chill (but you still have DS #2, weapon switch and focus #5 which should be more than enough with a 70% duration increase)
- you will miss a condition transfer (but it’s buggy or stealth nerfed right now)
- and an AoE fear (which is the real loss IMHO, despite being on a long CD)
But personally I would go for a reduced LF generation and take dagger/dagger + axe/focus so I can still transfer conditions (with multi target blinds) and an AoE weakness. And in this case, instead of going 10 points in Curses, you may prefer to add 10 more points in Death Magic to take both Dark Armor and Ritual of Protection (Shrouded Removal could also be interesting: a 7 sec cleanse).
Hope this helps. 
(edited by Ara.4569)