Aura System

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Auras are unnatural fields that saturate areas with a specific Realm of influence. Each aura has a numeric strength (0–10+) and affects unnatural powers, especially Psychic Projection and warpcraft.

Realms of Power

Realm	Description
Divine	Holy presence of the Emperor and His saints. Resists corruption, empowers faith-based miracles.
Ruinous	Chaotic Warp energy aligned to one of the Four Gods or Undivided. Boosts ruinous and psychic powers, mutates reality.
Psychic	Raw, unaligned Warp potential. Powers psykers, warp entities, and psychic phenomena.
Null	Anti-warp field. Suppresses all unnatural effects — deadens the Warp and damps soul-presence.

Aura Strength Levels

Level	Description
0	No unnatural influence
1–2	Faint trace
3–5	Stable zone of influence
6–9	Strongly aligned site
10+	Legendary, dangerous saturation

Effects on Psychic Projection

Realm	Effect on Psychic Projection
Divine	–Aura ÷ 2 penalty to psykers; +Aura to faith-based miracles
Ruinous	+Aura ÷ 2 bonus to psykers using Chaos-aligned powers
Psychic	+Aura bonus to unaligned psychic powers
Null	–Aura to Psychic and Ruinous Projection, –Aura ÷ 2 to Divine Projection

Ruinous Conflict Rule

Psykers bearing the Mark of a Chaos God suffer a –Aura ÷ 2 penalty in Ruinous auras aligned to an opposing god.
- Example: A Nurgle-aligned psyker suffers in a Tzeentch-dominant aura.

Null Aura – Special Notes

Null Auras are produced by:
- Blanks (Pariahs)
- Blackstone architecture
- Anti-psyker relics and technology
- Natural phenomena where the Warp is severed
They are emotionally disturbing, cause discomfort to Warp-touched beings, and are terrifying to daemons.
Ruinous, Psychic, and Divine influences are all suppressed — though Divine powers suffer less.

Aura Interaction Summary Table

Aura Type	Affects Psychic	Affects Divine	Affects Ruinous
Divine	–Aura ÷ 2	+Aura (faith only)	–Aura ÷ 2 (indirectly)
Ruinous	+Aura ÷ 2	—	+Aura ÷ 2 or –Aura ÷ 2 if opposed mark
Psychic	+Aura	—	+Aura (if unmarked)
Null	–Aura	–Aura ÷ 2	–Aura

Aura Modifiers

Increase / Sustain Aura

Modifier	Realm(s) Affected
Continuous use of aligned powers	All (empowers the matching aura)
Construction of sacred/tainted site or psychic conduit	Divine (temples), Ruinous (desecrated sites), Psychic (psychically attuned construction)
Summoning/manifestation of warp being	All (daemons, warp entities)
Faith rituals or sacrifices	All (depending on context)

Suppress / Weaken Aura

Modifier	Realm(s) Affected
Foreign power use (e.g., psyker in Divine zone)	Weakens dominant aura over time
Desecration, consecration or aligning	Inverse effect on aura type
Interference from opposing Realm	Divine vs Ruinous will clash
STC psychic dampeners	Psychic and Ruinous aura suppression

Aura Boundary Rules

Auras fade gradually across thresholds (unless artificially imposed, like by Gellar Fields).
Use Narrative Triggers or Random Fluctuation Tables to simulate Warp surges or blessings.

Example Scenarios

Cathedral-Ship Sanctuary (Divine 6):
Psykers struggle (–3), but Sisters of Battle invoking Acts of Faith gain +6.
Daemon World Grove (Ruinous 8 – Nurgle):
Marked psyker of Nurgle gains +4 to Psychic Projection.
Marked Tzeentchian receives –4 penalty due to alignment conflict.
Black Ship Cell Block (Null 5):
All psykers are suppressed.

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