My Cards
From VDragonball RPG Wiki
My Cards
The cards in the v-dragonball universe are used for gaining but not limited to; Bonuses in learning new techniques, bonuses in income, bonuses in training, bonuses in fighting and leveling up techniques.
These cards are very handy, but in order to use them you will need to buy a single card, hover over it and identify which cards you will need to activate it.
Let's take the card: Absorbed Power for example, the price is 30 dragon points. The bonus is 2% time reduction when learning a new technique, the cards to activate this card are the following: Android 20, Guru, Oolong and Copied skill. When you have collected all of the required cards, then "Absorbed Power" will activate.