You can get Free skin from event Monthly Sign-in. If you miss some days and didn’t login, you can purchase that days rewards with daemonds. Misions you will find Benefits Center -> Monthly Sign-in. You need collect 8000 Decor Vouchers, to get it you must open all boxes on up (sign in 25 days)
Then you colect Decor Vouchers you must go Benefits Center -> Black Diamonds Store -> Advanced Base Decoration. Good luck, have fun and Merry Christmas all.
