I bet this has been clarified somewhere already...but I'm not exactly sure where to look for such a clarification. So, I want to ask, can a goblin builder use it's ability to "remove 1 damage from a corporeal conjuration in it's zone" on a wall? I ask because a wall isn't exactly in a zone, it's between them...but they can also be hit with melee attacks like they are in the zone. So, I'm not sure which way this ability falls.