This is a deck I used in a two-handed campaign to play through the quests in the Black Riders saga expansion as well as the POD quests The Old Forest and Fog on the Barrow-Downs. Some card choices, as well as the overall deck strategy, were made for thematic reasons. More on this in the fellowship write-up.
The goal of this deck is to turn Aragorn into a superhero and muster large amounts of questing power and location control, as well as provide some combat support for the other deck which was a tri-sphere Hobbit deck. Aragorn's main role is to quest and ready, then provide defense while a LoV'ed Glorfindel and newly-readied Idraen do the attacking. Steward of Gondor, Blood of Numenor, and Arwen Undomiel are the main components of this strategy. Ring of Barahir can provide extra hit points (up to +3) as well as give Aragorn a Lore icon to utilize A Burning Brand and potentially pay for Asfaloth if Galadriel doesn't get him out. The ring and Burning Brand were only added after multiple attempts at A Knife in the Dark were ruined by shadow effects. Roheryn + Gondorian Shield was another thought I had but requires a good deal of set up and the attacking ability of Roheryn just wasn't useful given Aragorn's role in this deck.
Galadriel and Sneak Attack greatly speed up the set up of this deck, which is otherwise a little slow for some quests. At the time, I certainly don't feel this deck is optimized as I kept playing around with the attachment choices and number of copies, but this deck in this form and its counterpart were able to complete the saga quests after these numbers of attempts:
A Shadow of the Past: 3
The Old Forest: 1
Fog on the Barrow-Downs: 1
A Knife in the Dark: 4
Flight to the Ford: 1 (I was extremely fortunate with the cards on this one)
Just so you know, Sneak Attack - Galadriel doesn't work. Her Response triggers 'when you play Galadriel from your hand' (which means pay 3 Leadership resources for her to play her) and Sneak Attack puts her into play, which is not the same thing