All the realm-stuff is in malign sorcery though.
Some criticism to your list: the lord arcanum on foot has a trait that improves the use of endless spells (again, malign sorcery). If you don't intend to get use out of that i'd go either for a Lord Arcanum on Gryphcharcer for more move and better stats or drop him to a Knight Incantor if you only want the wizard. Femember that Hallowed Knights can also ignore friendly spells, so rather pick offensive ones.
Also your list lacks shooting, maybe drop a unit of Liberators in favour of some Judicators or a unit of palladins for a ballista or two.