User blog comment:DocCardo/Spending money/@comment-137.132.250.14-20121121083359/@comment-137.132.3.9-20121124145728

The center of all is trading. Even if you get junk rares, you can still sell it, obtain PP, buy stronger card (repeat until you build strong deck). Save PP & ED for cheap & strong cards. Most importantly, be ACTIVE (participate in events to get rares or bonus prize, join guild & participate in battle royale).