All you have to do is beat your opponent by 10+ goals in a game on pro difficulty. This can be done in one minute periods. I did this with Vancouver and Ottawa when I was doing no favorites. If you’re having a hard time doing this in one minute, than boost up the time a bit and you should be able to do it. I would recommend Ottawa for one main reason and that they have the best offensive first string in the league. Dana Heatly, Daniel Alfredsson, and Jason Spezza are amazing. Spezza has amazing passing ability, speed and puck handling and Alfredsson and Heatly have astounding scoring abilities. With Alfredsson with sliders leaned towards me, I could just grab the puck with him and than hold my slap shot and zoom it in. I had 7 goals in 1 period (1 minute periods) with him the time I had no mercy.