Haki/Observation

Observation Haki (見聞色の 覇気, Kenbunshoku Haki) allows the user to sense the presence of others, even if they are concealed from view or too far to see, smell or hear naturally.

Description
Observation haki is the sixth sense, the ability to sense the presence of others around the user. Even if the one being sense is concield or too far away for any other sense to detect them. More skilled users of this Haki can not only feel once presence but their emotions and intents. They can detect the strength of one based on their spirit, which is whats detected by the Haki.

Observation haki can also be used in battle, with enough skill, one can use this haki to predict an opponent's moves shortly before they make them, thereby making the attack that much easier to evade. This prediction appears to the user as an image or brief "premonition" of what the opponent will do in the user's mind's eye, and the damage the user will take if the attack actually "hits". It appears that the more killing intent the enemy has, the easier they are to predict.

Masters of observation haki are also able to generate a physical manifestation of their haki called Aura. By decreasing their aura, a haki user can conceal their presence from other observation haki practioners. By increasing their aura, the user can increase their physical abilities, while giving off a spiritual pressure that can damage anyone trying to read them with observation haki.