Power necro for WvWvW
This vid will give you a good place to start.
Perfect Dark [PD]
You can go wvw zerging/bag farming with about anything but minions.
Other than that level up a guardian or anything else with no necro in its name.
0/0/30/30/10 axe/dagger and staff with full PVT everything with plague is awesome goodness in WvW if playing frontline with a zerg. With full stack of bloodlust (which is easy to get, trust me) and food buffs = near 2700+ power. You lead the zerg in with plague and blind and let your backup frontline kill, kill, and kill = bags galore.
(edited by Rigel.3092)
I like 30/0/X/X/30 with a mix of Zerkers and Knights gear. D/F + Staff, Consume Conditions, Spectral Grasp, Well of Suffering, Signet of Locust/Flesh Wurm, Flesh Golem/Plague. It works pretty well for me. A lot of people like Axe for their mainhand weapon, and Dagger and Warhorn can work well as off-hand weapons too. It really comes down to what you like.
How to Condi Reaper on a budget
Everything I say is only in reference to PvE and WvW.