I definitely feel that it is, when I change teams 3 out of 5 times the teams I face off against have altered counters to my team, and it will stay that way until I change my team again then I find myself with a new counter. It's not 100% but its definitely there to add frustration so you buy more stuff. Something new seems to be the increase in max lvl players with max lvl cards either trolling or bottling below 5k, this is a game where strategy only goes so far, if you are a couple card lvls behind you have no chance even against a bot with max cards most of the time.