I know there is a huge discussion going on over at the post about unnatural abilities but its chaotic and hard to understand in its entirety.

So a very quick question. What does Unnatural Toughness do for a creature that is not Daemonic? Does it confer anything to his damage soaking capabilities? (ie someone with TB 4 and Unnatural toughness x 2 soak 8 wounds per blow?). If not and its simply for straight toughness checks (vs being poisoned for example) or skill toughness checks (carouse) why does it specifically mention that it works only on Toxins and Poisons in DotDG on the named Horned Darkness character at the end of the section? I mean if thats JUST what it does then why repeat it? Especially if you have someone with T40 that if he does not pass a test this "extra" ability does nothing for him?

arcona said:

It increases your Toughness Bonus. Anything that uses your Toughness Bonus is affected by Unnatural Toughness - so an Ork with Toughness 45 and Unnatural Toughness (x2) ignores 8 wounds per attack, before accounting for armour.

Daemonic is an entirely seperate way of increasing your Toughness Bonus.

Probably doesn't matter, but it's armour then toughness bonus.

Letrii said:

Irrelevant to my point - what I meant was, without considering armour (armour and toughness are resolved simultaneously anyway, except when dealing with Dual Shot or Dual Strike - at no point to the main rules deal with them seperately in regards to withstanding damage), an Ork ignores 8 points of damage on any given hit. Whether you account for armour before or after or at the same time, has no bearing on the question I was answering.

arcona said:

To answer the bit not covered above by Nathan.

Unnatural characteristics affect 2 things - 1) acts a a multiplier to Bonus (as discussed by Nathan above) and 2) they add to DoS on successful checks involving the stat. If I understand the text box in IH correctly x2 unnatural adds +1 DoS, x3 unnatural adds +2 DoS and so on.

Normally this applies to all checks based off the characteristic whether they are straight characteristic tests or skill-use tests. The exception for the NPC in DotDG is to let you know his unnatural toughness extra DoS only apply to those specific rolls and not to all toughness based rolls as unrestricted unnatural toughness would.