Husks:- Are best described as "The Corruption", as they gain most of the same tokens as undead but retain their soul, skills, ability to learn, and equipment. A husked dwarf can't come back as a ghost until the husk is destroyed. I imagine this soul-trapping business is quite unpleasant.
- Have a randomly generated name, referring to the fog/mist/etc. that corrupted them, and one of the words: "Husk", "Thrall", "Zombie".
- Because they don't use the undead hitpoint system, they can only be killed by: decapitation, bisection, cave-ins, frozen in ice, encased in cooling magma.
- If the husk or its gear is coated with the evil dust/etc., they can create more husks via. melee attacks.
Animated corpses:- Some people on the forums might call them zombies, but they can be skeletons too. They always have the name "XXXX corpse".
- They use the undead hitpoint system, so they will collapse after a few hits. They don't need a complete body, and might be only an animated hand, or survive decapitation.
- These are the things animated by necromancers or evil regions.
- The game gives equipment to some of the ones that you encounter at towers in adventure mode, but all locally-animated corpses will not have any equipment.
- They are soulless, so they have no skills and can't learn. An dwarf can come back as a ghost even while his corpse has been animated, because the soul is not trapped.
I believe it depends on the syndrome inflicted by the mist/fog. Since they are randomly generated, it is likely that at least some of them will not apply NO_AGING, just like how some slow down the victims while others get speed boosts.
Though I have no idea how to weaponize something that can take out demons without a sweat. The only thing I can think of would be to trap it in a cage, then restrain it somewhere where it can be a distraction for invaders. Though that may not work if the thrall is a dwarf, since you can't cage/restrain creatures that are the same race as your fort.
Most of the tokens are not randomly generated, so all of them are: NO_AGING:NOT_LIVING:OPPOSED_TO_LIFE:STERILE:EXTRAVISION:NOEXERT:NOPAIN:NOBREATHE:
NOSTUN:NONAUSEA:NO_DIZZINESS:NO_FEVERS:NOEMOTION:PARALYZEIMMUNE:NOFEAR:NO_EAT:
NO_DRINK:NO_SLEEP:NO_PHYS_ATT_GAIN:NO_PHYS_ATT_RUST:NOTHOUGHT:
NO_THOUGHT_CENTER_FOR_MOVEMENT:NO_CONNECTIONS_FOR_MOVEMENT
Also all of them have these tokens removed: HAS_BLOOD:TRANCES:LIKES_FIGHTING:MISCHIEVOUS
I have never seen anyone attempt to obtain husk dust/etc. and use it to contaminate a well, like the "vampire blood well" that CAN turn water-drinkers into vampires. Turning isolated people into husks could be interesting. One thing I did with the vampire blood contaminated well was to assign waterskins to soldiers, and then forbid the waterskins after being filled. I then unassigned the waterskins from the soldiers and had the contaminated waterskins taken to a secure room.
Husk water would be an interesting treatment option for critically wounded soldiers in the hospital. Hopefully the nurse can run fast!