The Navis Primer (2012), p141-142 — Daemon Techniques

Realm of Decay

Prerequisites: Daemonic Trait
Focus Power Time: Half Action
Focus Power Test: Willpower
Range: 3m x Psy Rating
Sustained: Yes

At times, the Warp's corruption may be almost invisible as it inflicts its damage through treachery and concealment. However, when its unholy nature is fully unleashed, its merest hint can be devastating to a mortal psyche. A Daemon in service to Nurgle may choose to expose the faintest hint of his dark god's power into the material world. In doing so, those exposed are completely overwhelmed by its presence, such that they may become incapable of normal function.

The Daemon makes a Focus Power Test to exude a hideously foul cloud of corruption about itself. As long as the Daemon sustains this power, any creature without the Daemonic Trait within range suffers a penalty equal to the Daemon's Psy Rating to all Tests, with an additional -2 penalty for each Degree of Success that the Daemon scored on its Focus Power Test. Additionally, whenever a creature within range fails a Toughness Test (regardless of the cause of the Test), it suffers 1d5 Impact Damage that is not reduced by Armour or Toughness Bonus. This stench is a direct product of the Warp, so no amount of mundane shielding or air filtration is capable of overcoming its effects.

Breath of the Plaguelord

Prerequisites: Daemonic Trait
Focus Power Time: Full Action
Focus Power Test: Willpower
Range: 10m x Psy Rating
Sustained: No

Among the horrors that dwell within the Warp are creatures that embrace the essence of corruption and decay for its own sake. They revel in the very process of destruction. These entities long to see those who would dare oppose them reduced to a feeble state prior to their complete defeat. Nurgle's Embrace is a wasting disease that can destroy its victims and may even transform them into Daemons. This potent attack is duly feared as the disease is nearly always fatal.

The Daemon activates this power by selecting a target area and making a Focus Power Test. If the Daemon succeeds, all creatures within 2 metres x Psy Rating of the target area are afflicted by Nurgle's Rot. Targets may attempt to Dodge the cloud of disease, treating it as an Area Effect Attack. Those within range must immediately pass a Hard (-20) Toughness Test. Each Degree of Success on the Focus Power Test inflicts an additional -5 penalty to the Toughness Test. If a target succeeds, it has shrugged off the effects. If it fails the Test, the target becomes infected with Nurgle's Embrace.

When a living creature catches Nurgle's Embrace, it suffers 1d5 Impact Damage not reduced by Armour or Toughness immediately. It then suffers an additional 1d5 Impact Damage not reduced by Armour or Toughness Bonus at the start of each of its Turns for a number of Rounds equal to the Degrees of Failure it scored on its failed Toughness Test to resist the disease. As the disease festers, it may also spread to others; each time a character suffers Damage from Nurgle's Embrace, each living creature within 5 metres that is not already infected must make a Challenging (+0) Toughness Test or also become infected for a number of Rounds equal to the Degrees of Failure it scores on its own failed Toughness Test. Whenever a creature dies from Damage caused by Nurgle's Embrace, it rises as a Plaguebearer, intent on spreading the gifts of Papa Nurgle far and wide across the Materium (see page 141).