Sorry if this has been discussed, but as far as i could tell from searching i couldn't see anything about Grand Hosts of Nagash being able to ally in OBR units or not? I've seen the fact that OBR don't have allies (aside Arkhan and Nagash), but that's it.
I vaguely remember an errata for Nighthaunt units available to GH of Nagash (when the tome dropped, and new units were available), i assume there would be something similar for OBR? when a tome drops that would affect others, GW would usually put out an errata soon after?
I was hoping for the ability to have my main Nagash army have that sweet catapult and maybe a unit of the skelly boys, or skelly boys on horsies.
