This was one of the rewards won in the last character auction, a playing card drawing of Ace: http://www.furaffinity.net/view/16867374/. I've always loved those unique Ace of Spades designs in playing cards, and this character was perfect for designing a Shisa themed Ace of Spades! Done in ink on an actual playing card.
This character found a happy home with http://www.furaffinity.net/user/korat
If you'd like to be in on some of these character auctions, be sure to keep an eye out for announcements! They're limited edition, only being held once a month at most. Late August/early September will be the next auction, for those who like to save up for such a rare treat :)