Generic (gray) energy costs can be paid by any color. So a card costing 1 red and 1 generic can be paid by 2 red, or 1 red and 1 yellow, or 1 red and 1 generic.
Generic energy that you've generated, however, can only be used to pay generic energy costs.
Also, you will generate generic energy when you convert generic cards OR multicolored cards.
Good slot game. Like the bells and whistles. How about building on this template and adding levelsand more mini games? All in all though,..good slots game.
It's a really great game. I love everything from the combat to the text run on the right. But we need some cards given as loot. Thats what will keep us coming.
Heya Redeye5! Thank you for your feedback. As you defeat opponents and clear nodes you'll find cards can and often do drop as loot along with other things, such as gold and experience. This also works in Brawls :)
 "Mana Collectors"){kind=icon}
 "Orbs CCG"){kind=icon}
 "I Shot The Sheriff"){kind=icon}
 "Soccer Balls 2"){kind=icon}
 "New Years Knockout"){kind=icon}
 "Effing Worms - Xmas"){kind=icon}
 "Wasetland-dev"){kind=icon}
 "Rambo The Revenge"){kind=icon}
 "Danger Darts"){kind=icon}
 "Jacksmith"){kind=icon}
 "Turbo Golf"){kind=icon}
 "Super Fishing"){kind=icon}
 "Dragon Warrior - The Dragon Scroll"){kind=icon}
 "Forest Slots"){kind=icon}
 "GunBall 2: Emperor Revenge"){kind=icon}
 "NTCreature2"){kind=icon}
 "Random Adventure Game"){kind=icon}
 "Gibbets 3"){kind=icon}
 "Skyrimlator"){kind=icon}
 "Clash of the Dragons"){kind=icon}
Generic (gray) energy costs can be paid by any color. So a card costing 1 red and 1 generic can be paid by 2 red, or 1 red and 1 yellow, or 1 red and 1 generic. Generic energy that you've generated, however, can only be used to pay generic energy costs. Also, you will generate generic energy when you convert generic cards OR multicolored cards.