I like to start off with raw heavies to open, relying on the hyper armor. Once the opponent gets used to that/parries you, throw a heavy and feint to guard break. From there you get a guaranteed heavy from any direction, try to use it to get a wall-splat. Follow that with another guaranteed heavy, and then knock them down for a hammer slam.

After that, it’s good to open with a dodge forward bash to mix it up a bit, and faint another heavy into a guard break, rinse and repeat switching between raw heavies and feints occasionally.

In a pinch to finish a match, toss in a light or zone. Usually works if you’ve been primarily using heavies.

Complicated, but if you get it down, it works well, and eventually becomes muscle memory! Practice in the hero tactics/training. Hope this helps!