This free deck of cards is a way of saying thank you for your support. With this, any loyal playing card user can pick up a brand new (in my opinion, unique) deck of cards to add to their collection. Keep in mind this is super limited; there are no guarantees on how many are left.
There is no catch. All you have to do is cover the cost of shipping. And no, the shipping prices are not inflated for this offer; they are the standard rates available at kingdomcards.ca.