| Category | Resources |
| Type | energy |
Negative energy represents a fusion of Chaotic and necrotic forces. This energy is harnessed to summon Undead entities. It can also be utilized to revitalize undead creatures, and serves as the foundation for anti-healing incantations such as Cause Wounds and Harm .
When concentrated, negative energy can prove highly destructive. A few methods of delivering potentially lethal doses include energy weapons such as black siege crossbows, Night Howlers, and NEGs.
One of the most efficacious methods to channel negative vitality is by employing a material denominated bonebrack. The undead wielding armaments crafted from this substance can channel the repercussions of their touch assaults through the weapon; such that a ghoul can induce paralysis via a bonebrack weapon as if they physically contacted the victim.
The foremost sources of adverse energy reside within the Cubes of Negativity, more commonly referred to as Death Balls.