Forbidden find Prologue All though thought there was only one set of clow cards even the guardians yue and kerberos so let me take you back to when they were first created. Many do not no this but clow had a sister named Flow almost as powerful as clow and she created magic cards to as well as guardians sunbeam and ice moon the same night clow created his. Flows reason to create them on that night so she could use some of clows magic to make her powerful enough to create her own set of cards. At first clow new nothing till he had finished creating the cards and yue and kerberos that he had helped his sister create her own creations and using his most powerful spell he locked his sisters creations a way in a book like his but different and banished his sister away. Clow thought that Flows cards would lose their magic eventually as they had never been used so clow had no need to look over Flows book and left it where it was. And it lay dormant for centuries till clow died and the spell broke and yue and kerberos who did not really no if was clow told them of Flow was true as they had never met her before left and waited till there new master or mistress came. While they waited flows gardens and cards begin to wake slowly but still awaking. When awake they sensed the clow cards magic and feed off some of that to gain power then decided to wait till someone found them.