A wide-range genjutsu (広範囲幻術, kōhan'i genjutsu), whereby the Giant Clam manifests a realistic mirage of itself along with its summoner, the Second Mizukage, which is almost impossible for most observers to distinguish from the real thing. This property makes the technique ideal for concealing the actual location of either individual, resulting in confusion amongst the opposition as their attacks are rendered ineffective and they attempt to ascertain the pair's true positions. However, to maintain the illusion, the clam must continually exude a mist from its siphons[1] throughout the duration of the technique.
According to the Mizukage, the only method to end the technique is to defeat the real clam but as the creature itself remains camouflaged behind the mirage, this is no easy task, even if the summoner themself is providing beneficial advice. While the technique is in effect, both the Mizukage and the clam seemingly cannot be sensed through most means, with the exception of contact type (接触タイプ, sesshoku taipu) methods.[2]
