Use training in righteousness on the Green David, make him Blue and Purple as well as green, give him Helmet of Brass and have Throne of David in your territory and activate Hidden Treasures, that is one preblock enhancement and two post block ones. (you can clear any weapons out with Aaron's rod)
Using musicians chambers you can gain a few extra enhancements including a negate any evil card if you need to get around an Unknown Nation or Go into Captivity (Cymbals of the Levites). Or a protect from all evil cards (Protection of angels).
And if you want to be really mean you can use Helmet of Brass to Play Authority of Christ Promo for a CBN discard all evil characters.
Thats all I can think of off hand
