This deck is mainly built to get use of Ancestral Armor. If you get Master Ironsmith and a copy of Ancestral Armor in your opening hand, you can discard the armor with Arwen Undómiel to add a resource to Elrond, and then, if you quest successfully with Hirgon, pay Master Ironsmith with Elrond's resources and put Ancestral Armor into play.
These were my first additions to the deck. Then, I just added more allies to get advantage of Hirgon, and some staples to glue it all, such as A Test of Will, Daeron's Runes, Elrond's Counsel, A Burning Brand...
Stand and Fight are there mainly to recycle Beorning Skin-changer, which in some cases can be great to get more uses of Beorning Guardian.
Meneldor and Rhovanion Outrider are the main location control tricks of the deck. Meneldor can be used to chumpblock and then replayed with Stand and Fight
I think the deck is quite well-rounded and balanced, and can deal with all kind of threats. It may suffer in quests which strongly push you in an specific aspect of the game, but changing just 2-3 cards, you should be able to adapt your the deck to it.