AmiAmi have have updated their site with Kingdom Hearts Chain of Memories playing cards. Each deck contains 52 cards in the style of the cards used by Sora and Riku in Chain of Memories. The cards range from Keyblade and Items to Boss and Allies. You can view the cards in the gallery below.
Each deck will cost ¥2,460 (about $17.00) and will begin shipping in September.
UPDATE [June 23, 2023]: Pre-orders are being accepted on Square Enix e-Store and Aitai Kuji. The cards will cost ¥3,080 (about $21.00) on the e-Store and ¥2,040 (about $17.00) on Aitai Kuji. Both sites have the cards coming out in September.