16 Blood (12+3+1)
13 Soul Reaping (12+1)
- Awaken the Blood
- Dark Pact
- Shadow Strike
- Vampiric Gaze
- Mark of Subversion
- Blood Renewal/Strip Enchantment*
- Offering of Blood (E)
- Resurrection Signet
A fairly basic spiking build, but it should be effective.
The basic idea of the spike, after using Awaken the Blood: Dark Pact-> Mark of Subversion-> Dark Pact-> Shadow Strike-> Offering of Blood-> Dark Pact-> Vampiric Gaze-> Dark Pact->
This does over 500 damage. Should be able to take down almost any target that is not healed, and with OoB, energy is not a big problem.
The flaws:
While life stealing skills will heal you, you will net more damage from Dark Pact than health stolen. (Warn your monk in advance, should only be a real problem if you are called and gained up on).
You can be easily shutdown by a good Mesmer build (if a problem Energy Burn could be replaced for Mantra of Resolve).
A monk could keep the target alive through the first spike, making you start over, but that is why you coordinate with the rest of your team to overwhelm the monks first.

Please tell me how effective you think the build would be, and any ways that I could make it more effective.
Constructive Criticism=Apreciated
Blatant Criticism=Not

*Edited from Energy Burn to be able to include Soul Reaping