The Holy Knights of God are some of the most important characters to be revealed in the final saga of One Piece, known to be the direct subordinates of Imu, below only the Five Elders in terms of rank. The Holy Knights of God are incredibly powerful, bearing a Covenant with the sovereign of the world that grants them tremendous powers. On top of that, the Holy Knights also have immense Devil Fruit abilities, but they are not weak when it comes to Haki either.
While the powers of all members of the Holy Knights of God have not been revealed in One Piece yet, some of them are extremely skilled at the usage of Haki, with some others ranking among the very best users of this ability in the whole world.
7 Saint Killingham
- Haki Types: Observation, Armament
Saint Killingham belongs to the Rimoshifu family of the Celestial Dragons. He is an incredibly powerful fighter who has a Deep Sea Covenant with Imu. Killingham is immortal and can regenerate from nearly any attack. He has a very overpowered Devil Fruit, called the Ryu Ryu no Mi, Model: Kirin, and on top of all this, he is also a skilled user of Haki.
At the very least, Killingham can utilize two Haki types, those being Observation Haki and Armament Haki. When Killingham arrived in Elbaf, he clearly gave off a burst of Haki that was sensed by many others, including Scopper Gaban. Killingham can also sense other people around him, which indicates a decent grasp of the Color of Observation as well.
6 Saint Sommers
- Haki Types: Observation, Armament
Saint Sommers is one of the most seasoned Holy Knights of God in One Piece, as he has been a member of this group ever since the days of the God Valley Incident. Sommers possesses the power of the Iba Iba no Mi, which allows him to manipulate thorns at will. He also has a Deep Sea Covenant, which grants him immortality, control over the Abyss, and incredible regeneration, on top of superhuman powers. He's also a very skilled user of Haki.
Sommers utilizes advanced-grade Armament Haki, given that he was able to stop a strike infused with Supreme King Haki by Scopper Gaban momentarily. His Armament Haki is pretty powerful, and he will go on to show this ability later down the line in the battles in Elbaf.
5 Figarland Shanks
- Haki Types: Observation, Armament, Conqueror's
While Shanks currently stands as one of the Yonko, at one point in the story, he was a member of the Holy Knights as well. Shanks only had the Shallow Sea Covenant with Imu, which did not grant him significant power. He could pass through the Abyss, at the very least. Back then, Shanks was still very weak, given that even Blackbeard was able to injure him and scar his eye permanently. Still, he was no pushover, as this was shortly before he received a one billion berry bounty.
At this point in the story, Shanks was already a user of all three types of Haki. He even had control over Conqueror's Haki, as was confirmed by Oda in an SBS, where he stated that Shanks learned the power of Kamusari himself by observing Roger. The fact that he could utilize Kamusari means that he could channel advanced Conqueror's Haki at this point in the story. Furthermore, when Shanks clashed with King Harald later down the line, he clearly made use of Supreme King Haki in the battle, showcasing advanced mastery of this skill.
4 Gunko
- Haki Types: Observation, Armament, Conqueror's (Through Imu)
Gunko is a very powerful member of the Holy Knights. She is known to have one of the most overpowered Devil Fruits in One Piece, the Aro Aro no Mi, and on top of that, she also has strong Haki. Gunko's Haki was sensed by Scopper Gaban from miles away, and what's more, she can even erase her presence completely, which is an advanced Haki skill that not many people can utilize.
Gunko can even channel Conqueror's Haki, as has been seen in the story already, although whether this Conqueror's Haki belongs to her or Imu remains to be seen. Regardless, Gunko is a strong Conqueror's Haki user, and her other forms of Haki are also incredibly powerful.
3 Garling Figarland
- Haki Types: Observation, Armament, Conqueror's (Implied)
Garling Figarland is the Supreme Commander of the Holy Knights of God, who has now been promoted to the rank of Five Elders. As such, he must have the Abyssal Covenant with Imu, granting him the power of a Yokai on top of incredible immortality and regeneration powers, as well as superhuman strength.
Garling is also a skilled Haki user. Given that all the elders can utilize all three types of haki, he should be no different in that regard. He might not be the strongest Haki user among the Holy Knights of God, but he is still a formidable user of this power. He will go on to show his abilities later down the line in the final saga of One Piece.
2 Shamrock Figarland
- Haki Types: Observation, Armament, Conqueror's
Shamrock Figarland is the current Captain of the Holy Knights and the twin brother of Shanks. He is one of the strongest characters in all of One Piece, given that his talent is directly comparable to that of Shanks. Shamrock holds the power of an enchanted sword that can turn into Cerberus. At the same time, he also has incredibly powerful Haki.
It was stated in the story that Shamrock can extinguish his presence completely, which is a Conqueror's Haki skill, meaning his control over his Haki is incredibly advanced. He must be able to utilize all three types of Haki with proficiency rivaling that of Shanks.
1 King Harald
- Haki Types: Observation, Armament, Conqueror's
Out of all the Holy Knights of God, the strongest Haki user is, by far, King Harald. Harald was a monster with ancient giant blood that possessed tremendous strength. He was an equal to Rocks D. Xebec and possessed all three types of Haki. His first Haki clash with Rocks was such that it blew away all signs of life in a 5 km radius. From there onward, Harald only continued to grow in strength.
Eventually, Harald was inducted into the Holy Knights and was branded with the Deep-Sea Covenant of Imu. This buffed his strength even further and also granted him the powers of regeneration, immortality, as well as teleportation through the Abyss. At this point in the story, Harald's Haki was way too overpowered. In fact, it was stated by the Five Elders that Harald was not even a monster but a living weapon at that point that could destroy the whole world. Harald's Haki was on such a level that even Shanks and Gablban's Haki combined could not put him down. Undoubtedly, among all the Holy Knights of God seen in One Piece, Harald's Haki was on a completely new level. Overall, his Haki was below only the likes of Joy Boy.
