Ok wifey, to get a card, you can go
here to see what the daily challenge is for your thread. Do that along with 15 posts. OR, you can just post 2 regular threads along with the 15 messages. This all has to be done after 0:00 KST (11:00 am) then you can go to the request center,
here and request your card like this:
Username: YOONGILOVER
Reason: Completed daily quest
Deck: (You can choose from Korean or International whichever you want)
You can only get 1 card a day, and if you get a card 6/7 days a week, then on the 6th day, you can request a weekly rare
I hope this helps! If you're still confused, just dm me