If you happen to have a class that can charge such as assassin or one of the soldier classes, here's a tip to help kill mobs and people alot faster.
You can wind up a combo before the charge, dont hit the last step of the combo. Charge, and while in the middle of the charge do the last step of the combo. If all goes well, you will hit them with your charge damage, slight pause, and then an explosion of all the damage from the combo.
For example, with an assassin that has from the darkness. Start up a swift strikes, press the first three buttons of the combo, charge your target and then press the last button. Great in PVP as this pretty much 1 shots anything up to a soldier.