Combo Card System

Not in the slightest. If you use the 1st move on the combo card, it'll trigger a timer on the second move where if you use that move within the time limit without using a skill in between it'll become powered up then go to the third move and so on. Combo cards are totally random, so sometimes they can be impossible or impractical (such as Thunder -> Ice Spear -> Magnum Shot -> Smash -> Blaze). You have to keep gathering them to get a good one (for example, a coveted combo card would be Lightning -> Assault -> Smash -> Leap -> Blaze/Windmill) of course, your chances of getting an uber combo card like that are slim.