How in the world do you complete the challenge "win a showdown with Only a High Card." Every time and I do mean every time I think I am going to win/ complete this challenge the last card that turns up is a Mach to one of my cards or the other players cards. I have been stuck on this challenge for 2 months. And to top it off its the last challenge I have to do before I can get the GLaDOS bounty item... I would gladly pay tokens to do a challenge swap, or something like that. Because the game is getting to the point where it isn't fun anymore..