How do the cards work? [Answered]

I'm playing a game where I have 4 cards and since it's decades since I last played Risk, I'm wondering how the cards work, when I can trade them in, how much for yadda yadda ya.
Conquer Club, a free online multiplayer variation of a popular world domination board game.
http://www.tools.conquerclub.com/forum/
http://www.tools.conquerclub.com/forum/viewtopic.php?f=6&t=21557
Elwar wrote:I also have a card question. With escalating sets, do they escalate with the group or the individual?
Ie. Red uses set, gets 4 armies; Green uses set, gets 6 armies; Yellow uses set, gets 8 armies.
or
Red uses set, gets 4 armies; Green uses set, gets 4 armies; Yellow uses set, gets 4 armies; Red uses second set, gets 6 armies and so on.
Thanks.