Talk:Backstab/@comment-94.242.246.47-20200115180959/@comment-94.242.246.38-20200223031828

I did a bit more testing and found that weapons that give bonus damage against certain creature types (e.g. The Burning Earth's bonus against undead or The Root of the Problem's bonus against unnatural creatures) do not apply those bonuses to backstab damage at all. Not only is that special damage not multiplied, but the extra damage that is dealt from a normal hit against a proper creature type is also not added. Special bonuses to hit from such weapons do work as expected, however.

For example, The Root of Problem +1 is able to backstab a Cornugon (immune to weapons of less than +2 enchantment) and gains a +2 bonus to hit on the attempt. However, it will deal damage as a +1 club, not a +3 club. Attacking the Cornugon normally, it will hit as a +3 club, do damage as a +1 club, and then add an extra 2 damage after the fact (effectively making it a hit with a +3 weapon).