Casket of Tomes

A box for cards released by the Genius Invokation TCG Society. Only beginners who have learned the basic rules and are verified as players can collect one.

They say that these boxes were made by researchers from the Sumeru Akademiya, and that they feature a special mechanism that can be used to detect nearby people who also possess Caskets of Tomes.

Use this function to engage in more matches against nearby players!