public static void sortFlying(CardList list) {
        Comparator<Card> com = new Comparator<Card>() {
            public int compare(Card a, Card b) {
                if (a.hasKeyword("Flying") && b.hasKeyword("Flying"))
                    return 0;
                else if (a.hasKeyword("Flying"))
                    return -1;
                else if (b.hasKeyword("Flying"))
                    return 1;

                return 0;
            }
        };
        list.sort(com);
    }//sortFlying()