Hydrou Bunsin no Jutsu

Design
The user performs the needed hand signs and then creates what seems to be an ordinary clone. The clone cannot attack and will disappear the second it meets an opponent. When the clone is destroyed two more clones come in the place of the destroyed clone. This can continue infinitely if the clones are continuously destroyed, its purpose to overwhelm the opponent in numbers and cause an effect of invincibility although the clones can do no damage.

Multi Shadow Clone Jutsu Imitation
The hydra clone technique looks like a normal bunshin no jutsu, however this is changed as the clone is destroyed and more take it's place, making the technique look like a high level kage bunshin no jutsu when in reality the clones are simple clones that can do no damage.

Weaknesses
A simple "Kai" technique can easily get rid of all of the clones when used by a skilled GenJutsu user.