As a sort of request, I am posting a deck. It is a bit absurd because I currently run at least six decks but I am posting one I had been running more than a year ago. Still, I think it is quite strong, and should be easy to play even for newer players. I may update it if I find a card which is more fit.
Boromir (Tactics)
Aragorn (Lore)
Théodred (Leadership)
Henamarth Riversong x1
Squire of the Citadel x3
Errand-rider x3
Envoy of Pelargir x3
Warden of Healing x2
Master of the Forge x3
Rivendell Minstrel x2
Erestor x1
Denethor x1
Faramir x1
Gandalf x3
Gondorian Fire x1
Horn of Gondor x1
Gondorian Shield x3
Captain of Gondor x1
Protector of Lórien x2
Song of Wisdom x2
Song of Kings x1
Heir of Mardil x1
Steward of Gondor x3
Visionary Leadership x1
A Burning Brand x2
Sword that was Broken x1
Daeron's Runes x3
Peace, and Thought x2
Sneak Attack x3
It is obviously not a very thematic deck. Well, Théodred is the odd duck here, the rest is Númenor and Elves, so pretty thematic. As for the strategy, you try to equip Boromir with the attachments to make him a machine defender. But with the Protector he can also quest quite nicely. It is nice to pile the title attachments. Heir of Mardil helps Théodred to become an aid in battle. The Sword, Visionary Leadership and Faramir help with questing. There are enough Gondor characters to justify the one copy of Leadership, I feel, especially if someone else but Boromir become the Steward of Gondor. If you feel like the questing is not sufficient, more copies of the Sword will be an option to solve this, but I like to run less copies of the unique attachments because Master of the forge can fetch them. He is quite a good card to start with. As for Gandalf, use him for combat or card draw until you have used Strider's ability to reduce threat. Peace, and Thought is usually an excellent card with Boromir. You usually just lose Strider for a round, or Théodred if you have enough money already. Chumps are there for the rescue in the beginning. Horn can become quite a money-maker, much more so in coop. I like it even more than Steward whenever I play together with Silvan or Rohan but here Steward is the attachment to have -- and the only unique with more than a copy. Use Song of Wisdom on Boromir for A Burning Brand.
Edited by Fingolfin Fate