Why do people complain about the Kongbot challenge so much?! It's a good way to make new players try the game before going against real people. Plus, it gives them at least ONE time to go with their 3 starters.
The card winning % is WAY too low. I gained only 7 cards in 71 wins. Part of the addiction for this game comes from card collecting, if we never win any, it quickly gets boring.