Those are the big ones. Wall of Iron+Fabricate for masterwork gear for our minions along with trap components. Move Earth+Wall of Stone for terrain manipulation and work on structures. Eventually Polymorph any object would let the wall of iron turn into a wall of mithril or admantine.<br/><br/>Mirage arcana would let us keep our stronghold relatively safe from intruders and would certainly make it harder to navigate once they were inside.