The information for the end of month reward chests are out:
Rank 20 - 1 golden common card, 5 dust
Rank 19 - 1 golden common card, 10 dust
Rank 18 - 1 golden common card, 15 dust
Rank 17 - 1 golden common card, 20 dust
Rank 16 - 1 golden common card, 25 dust
Rank 15 - 1 golden common...