Okie doke
I first reach in my back pouch and pull out several nails. I then throw them in the air and control my chakra and have them merge into the ground "Tip first" i then channel my chakra into the ground where the needles at very stealthy like under your dummy. I then have several nails emerge from under your dummy pinning him in place. I then have the rest of the nails erupt very violently tearing his face up.
How to avoid: Go into Mid range... :|.. Blow away the nails while in the air. If already in the ground tear the ground apart. (thats what i would do)
When would i use this: I would probably use it in a more stealthier version. Probably release 2 or 3 nails in the ground without the opponent knowing and if he is in short range i will emerge them out the ground. and would have the 3 one just aim at their forehead killen em