Enemy Card

Enemy Cards appear in Kingdom Hearts: Chain of Memories as a type of card which provides temporary passive effects within battle. While Enemy Cards require CP like the playing cards, they are kept in a separate part of Sora and Riku's decks, and do not have numbered values. Each Heartless within the game has its own Enemy Card. These Enemy Cards can be obtained as a random reward dropped from the last Heartless to be defeated in a battle. The bosses also have their own Enemy Card, and though these are guaranteed rewards, some bosses must be defeated multiple times before they will drop their Enemy Card. Though Riku cannot modify his deck, each deck he is given includes an Enemy Card based on a Heartless native to that floor's world. Furthermore, Riku is allowed to keep any boss-based Enemy Cards that he obtains.

Enemy Cards are available in both Sora's Tale and Reverse/Rebirth. While Heartless and Heartless bosses use numbered versions of their Enemy Card to attack, character bosses instead use Attack and Magic versions of their Enemy Cards. However, character bosses can also use normal Enemy Cards in the same manner that Sora and Riku can, as passive abilities.

Notes and References
Cartes Malus