Card Upgrade System
In the later part of the game you will have the chance to improve your cards.
That will not be cheap because you need 10 S-Cards and a lot Destruction Prevention Scroll.
To Upgrade your Cards you need to find a Card Manager for example in Saint City.
Info: Destruction Prevention Scroll can be exchanged for 15 Perin at the Card Manager!
How to Upgrade my Cards?
To Upgrade your cards put 10 S-Cards in the Window and a Destruction Prevention Scroll, you need to pay a small amount of Perin for each try.
If you are lucky you will soon have improved Cards in your Equipment!