While usually believed to fight unarmed, there is one weapon a martial artist often employs -- the ground. Knocking a victim down forcefully can cause a greater impact falling than the force of the blow alone could obtain alone. Using this skill, you kick your enemies' legs out from beneath them, and then gravity does the rest. Since the sweep itself requires only minimal contact on a relatively lightweight part of the body, it is quite possible for the attack to follow through and hit more than one victim at once.