Machinegun jab is evil. Went to pvp with my infighter and it's a great skill coupled with glorious combo followed by a ducking uppercut then heavenly combo. It can literally throw the enemy higher if you aim below him. But since i'm too low level for heavenly combo I just use the slam followed by a divine blow(the one where you slam on the grounded opponent). Also great how you can just drive your weapon anywhere without needing to carry it, good for sudden interruptions.