The original Chidori gained its power by shaping it into a form sufficient for an electrical discharge and using it together with the user's own "thrust". This technique uses shape transformation to form the original Chidori into a spear or blade-shape, adapting it for mid-range attacks with a maximum range of about five metres. Although it's less powerful than the Chidori, its increased range means there is less of a risk to the user. It also has the advantage of being able to be used for surprise attacks and capturing.
When the enemy's body is pierced, the user can alter the spear's shape into multiple additional blades, increasing the number of wounds. The blade can also be swung in order to cut things as well as cause fatal injuries. Sasuke has shown that he can also channel this technique through his chokutō.