I can feel it in these old bones of mine, and Maester Aemon agrees. The cold winds are rising. Summer is at an end, and a winter is coming such as this world has never seen. -Old Bear Mormont. The Winds of Winter is the second 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. Martins 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.