It does indeed 100% of the times take damage.
It seems then this ability on combat should give 3 out of 4 (on avarage) rolls a miss and no durability penalty, and that then works on doors (as Raze tried). Smells buggy to me.
EDIT:
Another interesting thing I noticed is that blocked attacks wont wear your weapon. It makes sense for missing, but blocking?
Last edited by Hassat Hunter; 08/04/14 12:54 PM.