The reason why some weapons have all the weight at one end is simple: the force is greatly magnified when you use leverage to your advantage. Such weapons as warhammers and battleaxes do massive damage when swung in a wide arc. This skill lets you use your foot in the same way. By leaping with a twist and swinging with all your might, not only can you cause more damage than a standard kick, but you can kick through more than one target, or even send them flying into each other.