New to game, friends play with both CCG and LCG cards

By Gazic, in 4. AGoT Deck Construction

So I just got the Core set for my birthday a few days ago and then a few of my friends let me grab some additional cards from their CCG & LCG collection.

I really REALLY enjoy the game so far, but I am a bit overwhelmed by the card pool. To make matters worse, my friends are running lots of legacy cards, even illegal cards such as Jaqen H'ghar and Outmaneuver.

I ended up building a Stark deck with the Treaty agenda choosing House Lannister. This was because I really don't have enough Stark or Lannister cards to build a 60 card deck on their own. It's also because I liked Golden Tooth Mines for draw and Lannister seemed to have gold production, while Stark had great 'kill' cards and I wanted to run my two copies of the Stark Plot card 'Winter is Coming' (+2 str to my challenges and 2 claim value).

Even then, I had to use a lot of Wildlings to round out my character deck list, so about 1/3rd of my characters are Wildlings such as Wildling Emissary/Scout/Messenger, Mammoth Rampager, etc. I have a few Wildling Agenda cards as well but are not sure if they're worth it.

Anyway, I was hoping to know what's considered decent as far as the CCG cards go. CCG decklists seem to be impossible to find.

I also want to keep my decks tournament legal (even though my friends don't seem to care) so I can build both CCG and LCG tournament legal decks.