Dark Aura

Description
For 30 seconds, whenever target ally sacrifices Health, Dark Aura deals 5...41 shadow damage to adjacent foes, and you lose 5...17 Health.

Acquisition
Skill Quests: Skill Trainers: Signet of Capture:
 * Graven Images (North Kryta Province)
 * Sorim (Quarrel Falls)
 * Master Scout Kiera (Henge of Denravi)
 * Dakk (Ember Light Camp)
 * ... more to be added ...

Usage
This can be a very effective warrior necro spell, by merely casting it on yourself. Once that is done I would advise using Signet of Agony and Touch of Agony as your sacrifice spells, both are quick to cast decreasing the chance of being disrupted. You can use Plague Touch to remove the bleeding caused by Signet of Agony. Unholy Feast and Vampiric Touch are two great ways to heal yourself. However, you should make sure you do not use Awaken the Blood as it will make sacrifice more costly. Also watch to make sure no monk casts Scourge Sacrifice on you as that will end the reasonable use of dark aura.