[Overload]

Back in the day, I played in a Corporate Car Wars Campaign. My company's motto was, "Olympic Motors: our cars are good, our drivers aren't." It was in reference to my poor dice rolling luck in games.
Car Wars, like Champions, Battletech and others, were old games with a rich 'meta game' of intricate design systems where a spreadsheet was needed to eke out a great design.
With CCGs that meta game came back huge. The best part (to me) of many CCGs is the deck building. Two of my favorites are the Battletech CCG, where there were many strategies to use and defend against; and Maple Story (and Transformers a bit), where each card had two separate uses and finding a balance between a good top and a good bottom of your cards are the key to winning.