This card makes me super excited for the new Warlord possibilities!
1. Presumed new Warlord focus on conjurations paired with that God of War alt win condition that's been hinted at would make this a cornerstone of that type of book.
2. Maybe "Wallord" strategy will be more feasible, walling off half the arena and hiding behind your Steel and/or Stone fortifications. You can be sure to lose a wall a turn this way, and this helps to get them built back up easier.
3. Being a useful outpost also helps Barracks channeling
Doesn't help cast Walls of Pikes all over the place or Gravikor, however :-/... As would be my wont as the Orclord.
I'm afraid though we'll get only one copy in the expansion and not another copy Barracks (because I think there's only one of those in FvW, since Epic). I really want to build simultaneous Orc and Dwarf books to battle each other