The following deck is one I just started working on. I'm liking it a lot. Boromir can become a beast. There are very few tactics cards in the deck, so he is just stock pilling resources. I also get Horn of Gondor on him and then every round I use spirit Bofur's quest action to give him an additional resource. I've had 12 or more resources in his pool. He once defended and destroyed two cave trolls in the same turn. Pretty epic when it all works out. The rest of the deck is trying to give questing support with spirit. One of the problems is card draw and getting the cards on Boromir fast enough. Oh yeah, there is also no treachery or shadow cancelation, which could be added if needed. Also, Gondorian Discipline has been really great in this deck, it has kept Boromir a live a few time. THis deck could probably be worked on a bit more, so I'd love to hear what others think.
Lord Boromir Deck
Hero (3)
Boromir (TDM) x1
Eowyn (Core) x1
Glorfindel (FoS) x1
Ally (15)
Arwen Undomiel (TWitW) x3
Bofur (TRG) x3
Ethir Swordsman (TSF) x3
Silvan Refugee (TDF) x3
Envoy of Pelargir (HON) x3
Attachment (21)
Gondorian Fire (AoO) x3
Gondorian Shield (TSF) x3
Horn of Gondor (Core) x3
Spear of the Citadel (HON) x3
Ancient Mathom (AJtR) x3
Blood of Numenor (HON) x3
Light of Valinor (FoS) x3
Event (14)
Foe-hammer (OHaUH) x3
Gondorian Discipline (EaAD) x3
Dwarven Tomb (Core) x2
Elrond's Counsel (TWitW) x3
The Galadhrim's Greeting (Core) x3