It depends what kind of card games you are talking about. There are many card games that based on pure luck, so no matter how great is your strategy or how great your experience then the result will be based on your own luck
It think it depends on a casino's approach to this
As I tend to think (I don't say that I'm 100% correct), if a card game is not against the house alone, i.e. there is more than one "human" player in the game, it should involve a certain amount of skill in the way poker does. So no matter what kind of game it is, it is not just pure luck, at least as long as human factor is involved
For example, you may not be lucky to get the best hand but you can bluff and still win in the end (you can either wait or force the pace). To put differently, it greatly depends on a particular implementation of such a game and if the interface allows things like bluffing (through chat or otherwise)