by pmsupport » Wed Oct 29, 2014 8:48 pm
Hi dragoon808, please rest assure that nothing is wrong with the drop rate of Karen. Getting strong boss cards is not supposed to be easy. Sometimes a player gets the boss card within several victory battles, much less than the average times a player is supposed to do the battle; sometimes a player will have to win the stage battle more times to get the boss card. Please keep trying and the 4th golden chest will surely come along.
Enjoy the game!
Playmage Support