Editing Psyker (section)

===Negative Psychic Levels===

#'''Sigma/Tau'''
#*When you start descending below the scale of humans, into the "negative" side of the scale, you start going psy-inert. People at the Sigma/Tau level would be able to perceive and be injured by an incoming fireball but may not be able to discern that it came from an unnatural source. It is believed the entire Tau species rests at this level.
#'''Upsilon / Phi / Chi / Psi''' (ironically)
#*These are individuals with varying degrees of immunity to psychic powers, though not to the same extent as a true Blank or Pariah.
#'''Omega'''
#*Usually referred to as Untouchables, Pariahs, or [[Blank]]s. Not only are they immune to psychic powers, but they can also inhibit the powers of psykers around them and/or neutralize psychic effects on an area around them. The Imperium often employs Blanks as an Inqusitor's servants, while the [[Sisters of Silence]] are a trained order of Psyker-huntresses that are all Blanks. The Eldar, believe it or not, also produce the occasional Blank, and these become the infamous [[Solitaire]]s of the [[Harlequin]]s. True Blanks have such a psy-negative effect that even normal people can sense it, and it manifests as an irrational loathing for the Blank, though in some cases it can be offset by either a good personality (Alizebeth Bequin) or an odd, but explainable character trait (Gunner Jurgen). For psykers however, Omega-level persons are physically and mentally painful to be near. 
#*The fluff is a bit inconsistent on the ''exact'' limit of a Blank's ability, but that's fine, because in [[Dark Heresy Second Edition|Dark Heresy]], Blanks exhibit a broad range of effects which can be different from person to person, much like high-level psykers can have different powers and disciplines. It can also be trained and manipulated, as in the case of the [[Sisters of Silence]]. Others can train themselves to actually benefit from the psychic power they suck from their surroundings (having psykers or even normal living beings in those surroundings really helps), which they use to empower and invigorate themselves.
#*There have, however, been a few occasions where a Blank's abilities have been overwhelmed or even permanently shutdown. Bequin's blankness was overwhelmed by the warp corrupted psi-sentience of a Chaos Titan and Wystan Frauka's blankness was gradually eroded away over time until he was able to be possessed by a psyker. In Gathering Storm, when Khaine's Gate broke, all the strapped and likely sodomized Blanks that were chained to it and had been screaming for the past few decades either exploded into ludicrous gibs or got outright possessed. Alpha Plus Psykers like the Emperor can probably brute force their way through even the most unnaturally powerful blanks.
#'''Omega-Minus'''
#*Strictly limited to [[Culexus]] Assassins, who are given specialized equipment to maximize the effectiveness of their Blank abilities. Another example was an Omega Minus Embryo kept in a stasis jar that was so potent that it killed a Thousand Son's Sorcerer and an Eldar Harlequin just by being near them. 
#'''???'''
#*The Pariah Alpha from Inquisitor: Martyr is a bit of a wild card, since we don't know if there are more like her or what she's capable of. We do know at least their mere presence can [[Wat|truedeath Daemons]]. She might just be an Omega Minus and that rung is beyond the scale like Alpha Plus is, but it's hard to say for sure.