Ugh, another complaint about balance. There is a way to beat them though, like maybe train in ice and get tower shield, or buy the treasure cards, or train in life for spirit shield (think that's what its called), or again buy treasure cards. Also get a second set og gear for pvp that resists balance if its that important to you. If it really matters to you then just do this, if you think you shouldn't have to spend training points/money to protect yourself, then it doesn't matter and you shouldn't complain, because you could stop them from killing you.