From a quick glance at the deck, I notice the following:
A lot of Kings on defense. I suggest finding some way around Ignore or adding more non-Kings; being attacked by King David will severely limit your options.
Your defense also seems excessively spread out. Brown alone can do site-lock quite well. I like the blue site/Possessing Demon combo, but perhaps there are better options. For instance, The Bear is immune to Red; perhaps including that with some Lion's Den and Persian Presidents would be a nice inclusion. Demonic Blockade would also be a nice addition, as would Threatened Lives. Cutting out the gold and/or crimson, in my opinion, would strengthen the deck.
I don't see any fortresses in this deck besides Wall of Protection. Consider adding The Throne of David. King's Daughter and Lemuel might be interesting replacements for War Officer and Jotham. Some of the new souls like deck-discard, site guard, and others could be interesting additions to the deck as well.