Wind Release: Vacuum Blade

The user exhales wind-infused chakra onto a weapon in order to increase its sharpness, range and lethality. For example, he or she can infuse a kunai to resemble a makeshift scimitar or (demonstrated in the anime only) infuse shuriken to increase their range and cutting power.

Trivia

 * Though unnamed in the manga and anime, this technique was named in Naruto Shippūden: Ultimate Ninja Impact.