Guild Wars 2

http://www.gw2db.com/skills/calc/necromancer#3|3|1201|4322|3918|1199|4693|20|1215|1211|0|20|1239|2324|0|0|0|0|0|30|1580|2397|1581|0|0|0|0|0|0|1|28037|28037|49989|49989|49989|49989|49989|25790|21080|21080|21080|21080|21080|

The above is a link to a build I am toying around with. Dual daggers, Sigil of Blood in both, with full Vampirism Runes (for some reason the build calc didn’t show gloves). All armor is Knight armor, and all accessories are Berserker. Weapons are personal choice, I personally run Valk weapons.
This build has not been tested in WvW or sPvP. I am going to go into both sometime this week. It is easily tweaked for dungeons/fractals and events. The way it shows now is for solo play.

The main focus is for life drains. All your hits drain life. And critical hits just skyrocket it. You move faster thanks to Quickening Thirst, and if your target is ever trying to move away, you have Spectral Grasp to chill them and bring them back. Well of Darkness and Well of Suffering are great on a 1v1 or larger groups. Suffering’s damage and Vuln stacking is great while Darkness’ blind helps you survive.
Consume Conditions was picked for multiple reasons; 1- Survivability against conditions when you can’t rid them with Deathly Swarm, 2-short cooldown for constant usage if under pressure, 3-not reliant on a minion that can die and leave you in a bad spot for a short time. If you’re confident though, you can use Blood Fiend. It has proven me well, and in areas where AoE isn’t a large factor, I prefer Blood Fiend. Up to you.
Flesh Golem Elite was picked due to the short cooldown. Except in dungeons, I only really get to pull up Lich Form (the only other option I pick) sparingly. And even when I do, I rarely get full use out of it. Flesh Golem does fairly solid damage, can take a hit or two, and has a knockdown.
Alternate skillsIn dungeons, I swap Spectral Grasp with Well of Power, Spectral Armor, or Signet of the Locust, depending on the environment and party composition. Also depending on the party I swap to Well of Blood for the healing skill.

Major Traits are picked as follows:
Spiteful Spirit: Just because I couldn’t think of something to pick. Reaper’s Might is also a good choice, but I picked survivability over damage here.
Chill of Death: Been second guessing this one a bit, but I forsee it being helpful in WvW/sPvP
Reaper’s Precision: Higher health leeching from crits you should already be getting. If I’m not mistaken, Bloodthirst makes it 1.5% as well.
Weakening Shroud: Picked typically for AoE need. Double stacking Enfeebling Shroud bleeds is just nice sometimes.
Bloodthirst: You are doing a lot of life draining as is, so best to make it stronger (does not increase Sigil/Rune drains)
Vampiric Precision: Draining. Because drains. Because build.
Quickening Thirst: Good for general travel and movement (or saving a dodge by just moving faster). See good potential in PvP.
Alternate Major TraitsAlmost every trait in Blood Magic is a viable option for groups. I simply picked what I felt benefited me the most. Focused Rituals and Terror are good alternates for Weakening Shroud, depending on personal taste. Contemplating moving all Spite traits into Death Magic to get Ritual of Protection and Death Shiver

As you can probably see, this build has lots of flexibility and options for PvE play. Again, PvP/WvW play will be tested shortly.

I am open to comments, critiques, and suggestions.