I agree that Kratos seems a bit too overpowered. Every game I have played with a Kratos, he is able to pop his level 3 halfway through the match, since he builds meter so quickly, and get at LEAST 4 kills because his level 3 lasts a crazy amount of time and it is VERY hard to dodge his attacks.
Anyway, it's just a beta, so I am sure this doesn't reflect the final build.
Anyway, we were getting dominated until she started playing Kratos. Miraculously, we started winning 70% of our games. Not only that, but she averaged 2-3 kills a game and even got the level 3 a few times. It was pretty telling how effective button mashing can be with Kratos.
Try taking advantage of his size guys. He's a big target, and very easy to combo. Also guarding is your friend! Try guarding and rolling towards him, once you get him just BEAT him. Beat him and dont let him run! XD Hes amazingat mid ranged, below adverage at far ranged, due to his star up and ending lag close range is very VERY below adverage.