Hi,
Ok, what you will need to do is pick a concrete game, and work on the specifications, it is very important to actually define precisely what you want. A card game means something different for each one of us.
So if you can provide a clear and precise description of what you want to achieve and it make sense, I am sure that we can then approach each feature and explain them properly and how they would be implemented with playmaker.
Bye,
Jean