A Game of Thrones LCG : The Raven's Song

From the Publisher's Website:-

With the onset of winter, the songs of ravens fill the sky. As the nights grow darker and the winds blow colder, the maesters and stewards of Westeros have taken to their castle rookeries, sending forth a flock of messenger birds with schemes and tidings that will shape the future of the realm.

The Raven’s Song is the fourth monthly installment of 40 fixed cards for the A Time of Ravens expansion to the A Game of Thrones card game, based on George R.R. Martin’s bestselling A Song of Ice and Fire saga. It contains 20 different never-before-seen cards designed to augment existing decks and add variety to the A Game of Thrones metagame.

This is not a stand-alone deck; an A Game of Thrones: The Card Game core set is required to play.