Guild Wars 2

Im making a build for my Necromancer and im looking for opinions about it.

First of all, sorry about my bad english, isnt my main language…

This builds is only for WvW and focused in stay alive and apply conditions (mainly CC Conditions, like fear, chill, etc.).

http://gw2skills.net/editor/?fQAQNBmWDbkRrbPTTcjfPBIp46njUUsyUPgn9zB-j0BB4iCyEIBKTqIasVRFRjVJjIqWdDzqrIa1RBARA-w

Explanation of some choices:
- Traits focused on Spectral skills and DS for more survivability, but im thinking focus in Wells instead Spectral skills. I dont see better options for the points in staff and DS,
- Curses III (Chilling Darkness) is indispensable. I think its amazing with the Plague #2.
- The Warhorn Sigil and the Nourishment i dont know what use. I think the condition damage is high enough, but power isnt really necessary. Anyway, is 422 stats point (250 of a stack on kill sigil and 172 of the Nourishment with that thougness and vitality) what i can choice between Power, Precision or Condition Damage.

Thats all. I really appreciate if can help me rating this build and tell your opnions about it.
Thanks =D