The known variations of chakra utilised include: * Wind chakra, as explained by Asuma Sarutobi, is used in order to increase the sharpness of bladed weapons, so much so that in the hands of an experienced user even small blades are capable of piercing substantial rocks easily, leading to his assertion that this chakra is unparalleled offensively in close and mid-ranged fights. This effect is achieved by utilising two opposing chakra currents, which are ground against each other in such a manner that they sharpen one another into fine pieces. * Lightning chakra, as applied to weapons, provides an increased cutting power similar to that of wind, with the addition of inducing numbness. However, this is instead achieved by inducing high-frequency vibrations within the object. Also, when