Weapons that haven't been unlocked: Mace, Pistol, Sword, Hammer, Longbow, Rifle, and Shortbow.
Off-hand only: Shield.
I can't see the shield for a necro.
Rifle/Pistol would be fun with the right skills, but I would rather see them with other professions.
A longbow/short-bow that rips the soul from the target on a crit may be useful.