We know that IFF is specifically not a problem, because Burning Shadows accomplishes it just fine.
Burning Shadows:
-Creates damage onto area
-Area is defined by natural Ulgu conductor(shadow) up to a certain limit.
-Targets applied based on wizard's definitions. Upscaled to strategic scale requires either identification through magical signature of the category, or mentally taxing target designation sequence.
-Maximum area is undefined but requires overcasting the spell to extend beyond squad scale.
Pall of Darkness
-Creates vision obscuring darkness effect onto area - Base effect
-Area is small and supported/transmitted by itself.
Biased Fog:
-Creates vision obscuring fog effect onto area
-Area is large and supported/transmitted by itself.
-Fog has observer dependent attribute of visibility - it is invisible/visible to selected targets. Spell must either perform logic, key off a Ulgu-detectable designator, or poll the spellcaster for a decision on a per-observer basis.
As such, I strongly suspect that the best way to create a selectively visible fog would be to actually approach it from a
light perspective and make two spells based on Illusion and Invisibility.
Specifically the mechanics of polarized light. One spell creates the goggles on allies which will specifically render any image with the spell key invisible to them. One spell creates a strategic scale Polarized Illusion that has the key tag attached.
Of course, while this does engage Warrior of Fog it does not engage our hax staff.
I interpreted it as that the usual methods would bounce, so Protector helped Mathilde with the inspiration of exactly what to say that would succeed as much as possible, given the Vlag paranoia.
I interpreted it as them being aware that she saved them, but they're just too paranoid to accept it. They have the knowledge, but not acceptance of it.
I could make a strong argument that history shows we're not very good at getting an impression of people based on a first or second meeting, and thus should be doing it more.
Well, Mathilde's diplomacy is merely okay-ish, and her first impression tend to be an Intrigue/Martial threat analysis more than anything else.
I wondered how long the Karak Vlag was trapped by their own reckoning, and then I realized that they themselves have no way to know. No sun, no moons or stars, no seasons. Only endless darkness lit by daemonic lights. Sleep only when so exhausted you can't stay awake any long, eat or drink only when your body can take no more. Was that a month or a year that just passed? Who knows? In fact, literally the only firm means of time measurement they might have had is how many inches their beards grew. Brutal stuff.
Note that hair growth is partly determined by stress and nutrition.
The thread perception that murdering Borek was ever on the table is baffling to me.
As a thread's size increases, so does the probability of fringe opinions being attached to vocal individuals.
The number of times a statement is made has little to no relation to how widely it is believed. The number of
unique individuals does, but even then, we have a thread of 300+ active participants. 10 people being vocal about a thing barely reaches notability.
So a random thought, but... don't most dwarves only live till about two hundred or so? Because it occurs to me that if Vlag's timestream stayed constant with reality, or was even sped up... there might not be any dwarves who have actually lived outside the hell mountain anymore. Who have ever not been in constant and direct war with daemons. And that... that makes me really sad. But also happy, because they actually get that chance now.
Naw, they pretty much keep going until they get stopped. "Natural" lifespan seems to be around 400+ years, more if they have something driving them.