Here is a deck built to beat Trouble in Tharbad. Not sure how it would fare against any other scenarios, but fun to use some of these newer secrecy cards against the decidedly pro-secrecy Tharbad.
Deck Created with CardGameDB.com The Lord of the Rings Deckbuilder
Total Cards: (50)
Hero: (3)
1x Mirlonde (The Drúadan Forest)
Ally: (12)
3x Ithilien Archer (Encounter at Amon Dîn)
3x Ithilien Lookout (The Dunland Trap)
3x Ithilien Tracker (Heirs of Numenor)
1x Haldir of Lorien (A Journey to Rhosgobel)
1x Anborn (The Blood of Gondor)
1x Gildor Inglorion (The Hills of Emyn Muil)
Attachment: (13)
3x Protector of Lorien (Core Set)
3x Ranger Bow (Assault on Osgiliath)
1x Leaf Brooch (The Three Trials)
3x Poisoned Stakes (The Blood of Gondor)
3x Resourceful (The Watcher in the Water)
Event: (25)
3x Expecting Mischief (Over Hill and Under Hill)
3x Strider's Path (The Hunt for Gollum)
3x Radagast's Cunning (Core Set)
3x Peace, and Thought (Shadow and Flame)
3x Risk Some Light (Shadow and Flame)
3x Mithrandir's Advice (The Steward's Fear)
3x Daeron's Runes (Foundations of Stone)
1x Noiseless Movement (The Three Trials)
Card draw needed in the starting hand to get the deck moving. Hopefully draw into Resourceful. Use some events to hold enemies in the staging area while you set up some cheap rangers and bows. Hang in there until the Haldir, Gildor and Anborn cavalry arrives!