Human Beast Clone is a technique that turns a ninken into an exact copy of its partner from the Inuzuka clan. The result is a full-fledged double that works almost like a shadow clone, but does not require the user to spend large amounts of chakra. True, the beast remains a beast and can give itself away by its habits or movements, so the Inuzuka for a time begins to behave more wildly and beast-like himself to confuse the opponent. If the ninken is knocked out, the transformation immediately wears off.
Usually this technique is used right before an attack of the Fang Passing Fang to throw the enemy off and strike from two sides.