Haki

Haki ( 覇気; Eng. "Willpower" or "Ambition") is a mysterious power that allows the user to utilize their own spiritual energy for various purposes.

It can be used to sense people's spiritual energy and predict their actions, give the user a protective coating of spiritual energy, and, for a certain group of "chosen ones", overpower the willpower of others.

All living beings in the world are capable of learning Haki; however, most people do not notice it or fail to awaken it. It's very existence is largely unknown to people outside of the Grand Line, and even in Paradise it is not general knowledge. While the full details of Haki are currently unknown, there is some information about how it will work mechanically. We also know that the crew could learn Haki by fighting opponents who have it, or by having a stronger character teach them.

Overview
Haki is, in essence, the spirit or will of a living creature made manifest as a power or a technique that can be used to interact with their surroundings in various ways. It is a great source of power for some of the most powerful figures in the world, and every Marine vice admiral is mentioned to be capable of using at least some form of Haki.

Haki was first hinted at in Episode 10: Are We The Bad Guys, when Alpha Marine sensed Verona's bullet and snatched it from midair, and later explicitly used by Trevor. Since it's introduction to the campaign, Haki has become a fairly prominent ability that can be used to gain an edge in combat.

Types of Haki
Haki is separated into three categories or "types" (色 shoku). The three types are Armament Haki, Observation Haki and Conqueror's Haki. Most people have a natural affinity for a single type, such as Observation or Armament, and tend to lean towards learning about that type specifically when training with their Haki. However, with enough training it is possible to learn to use more than one type, with the exception of Conqueror's, which cannot be obtained by training and is instead an inherent part of a person's being.

Each of the three types gives the user specific supernatural abilities. Each of them also allows the user to gain access to more advanced abilities with enough training, though these advanced applications are known strictly from the main One Piece story and haven't been touched upon in the campaign.

Observation Haki
Observation Haki or Kenbunshoku no Haki (見聞色の覇気 "Observation-type Willpower") is a form of Haki that grants the user a sixth sense, allowing them to sense the presence, location, strength, and emotions of others, as well as gain limited precognitive abilities.


 * An advanced form of Observation Haki allows the user to see slightly into the future.

Game mechanics
In the campaign Observation Haki works by either adding or subtracting by sets of d8's to hit. These die can be applied after the user knows if the attack misses or hits. It is currently unknown if Duros' Fighter ability Know Your Enemy ability is a form of Observation Haki.

Known Users

 * Verona
 * Boss

Suspected Users

 * Alpha Marine

Armament Haki
Armament Haki or Busoushoku no Haki (武装色の覇気 "Armament-type Willpower") is a form of Haki that allows the user to use their own spiritual energy to create, in essence, an invisible armor around themselves, providing incredible offensive and defensive capabilities. Notably, this form of Haki can be used to injure Devil Fruit users that are otherwise immune to ordinary physical attacks, such as Logia users.


 * An advanced form of Armament Haki allows the user to emit their Haki without a medium over short distances. This allows the user to strike targets without physically touching them.
 * A highly advanced form of Armament Haki allows the user to emit their Haki without a medium over short distances and have it penetrate matter, destroying objects or living beings from the inside.

Game mechanics
In the campaign Armament Haki can he used to add or reduce damage by sets of d8's. Armament Haki can also overcome all resistances and immunities, functioning as magic damage. This form of Haki can be applied after the user knows whether the attack hits or not.

Known Users

 * Ragnar
 * Trevor
 * Arzen
 * Inquisitor Maximus
 * Boss
 * Jefferson

Suspected Users

 * Alpha Marine

Conqueror's Haki
Conqueror's Haki or Haoushoku no Haki (覇王色の覇気 "Supreme Ruler-type Willpower") is a rare form of Haki that allows the user to exert their own willpower over others. This type of Haki cannot be attained through training and only one in several million people are born with this ability. It is said that whoever possesses this type of Haki has the qualities of a king. Conqueror's Haki is considered an extremely dangerous threat and a highly valuable asset by powerful groups such as the Marine Admirals and the Four Emperors.


 * An advanced form of Conqueror's Haki allows the user to coat their strikes with their conquering spirit, in a manner reminiscent of advanced Armament Haki. This makes one's strikes substantially more powerful and can only be done by the very strongest of Haki users.

Game mechanics
In mechanical terms, Conqueror's Haki can knock out an enemy for one round, depending on how badly they fail the Saving Throw. The DC is determined by one of the users stats modifier + 8 + proficiency bonus.

Known Users

 * Duros
 * Emperor Dominius

Suspected Users

 * Trevor
 * Jefferson
 * Tako