Spiritual Weapons CAN make attacks of opportunity if conditions warrant, at their normal attack bonus.
One five-foot step is FREE except:
-you can’t perform any other kind of movement.
-can’t take more than one 5-foot step in a round
-can’t take a 5-foot step in the same round that you move any distance.
-only if your movement isn’t hampered by difficult terrain or darkness
-you don’t have a speed of 5 feet or less
-can’t a form of movement for which you do not have a listed speed (does not give you wings).
You CAN take a 5-foot step before, during, or after your other actions in the round.
Total Defense: You can defend yourself as a standard action. You get a +4 dodge bonus to your AC for 1 round. Your AC improves at the start of this action. You can’t combine total defense with fighting defensively or with the benefit of the Combat Expertise feat. You can’t make attacks of opportunity while using total defense.
Reach weapons: You use a reach weapon to strike opponents 10 feet away, but you can’t use it against an adjacent foe.
A PC can use Acrobatics skill to move through an enemy’s space at a DC of 5 + their CMD.