Hey, im and my 2 friends are playing Agot for 2 months, and once we all got expansions, i found that im losing much more games than my friends (always 3 players). Im playing Lannister deck, my friends- targaryans and baratheons.
So can someone help me to build lannister deck form core set + lotr expansion, or can someone give me any tips about playing lannisters.

P.S Sorry for my poor english.

Thank You.