Hello players can get battle cards by upgrading, and by purchasing battle card packs with +1 slot and using them, the card slot can be expanded (up to 18 slots).

The battle card pack +1 slot can currently only be purchased through the mall, worth 1,000 points, or at the trading site.

How to use: Click on the backpack, prepare, click on the battle card pack, click to use it, or create a room yourself, with a battle card pack in it, click to expand