Zoro is a very powerful fighter and he possesses all three types of Haki. Zoro was able to use Conqueror's Haki unknowingly against Kaido. Biggest Feat: With his newfound power, Zoro managed to defeat the right-hand man of Kaido. However, his biggest feat is scarring Kaido.
During his battle against King, Zoro unlocks an advanced form of Conquerors Haki, which gave him the ability to coat his swords with it, similar to Armament Haki, which could further enhance his attacks. He also uses an advanced form of Armament Haki to shoot a short blast of Haki from a distance.
2 Roronoa Zoro
Like his captain, he also possesses the power to use all three types of Haki. Given his goal of becoming the World's Strongest Swordsman, Zoro will need to master Armament, Observation, and Conqueror's Haki if he hopes to eventually defeat Dracule Mihawk.
Yes both of them can use haki. Zoro can use all three types of haki along with luffy,he used conquerors haki in the fight with Monet and controls her body while Sanji can use armament and observation haki,he used his armament haki first time in the fight with Vergo.
When Zoro unleashed his strongest technique against Kaido, Kyutoryu, he unconsciously used an advanced version of Busoshoku Haki, which basically draw on Haoshoku Haki, and is enhanced by it. This is what Kaido apparently used with his giant kanabo, and now, Luffy can uses it too.
In fact, Nami has already demonstrated abilities similar to Haki. During the Alabasta Saga, she has shown the ability to tell even the slightest of changes in weather which, according to Vivi, is beyond human comprehension.
Zoro was the first person who accepted Luffy's invitation and joined the latter on his journey to become the Pirate King. Zoro is a very powerful fighter and he possesses all three types of Haki. Zoro was able to use Conqueror's Haki unknowingly against Kaido.
5 Armament Haki Subtype 4: Internal Destruction
The rarest subtype of Armament Haki, known as Internal Destruction, has only been demonstrated by two characters — Monkey D. Luffy and his mentor, Silvers Rayleigh.
Monkey D. Luffy has mastered all three types of haki, including Kenbunshoku Haki (Observation Haki), Busoshoku Haki (Armament Haki), and Haoshoku Haki (Conqueror's Haki). He can even use several subforms of the hakis, which makes him one of the most powerful haki users in the One Piece world.
In the anime, some Haki users are shown surrounded by different color auras (such as red for Luffy, purple for Doflamingo or pink for Big Mom) even if they are not using Haki at that moment.
Armament Haki is a power that Dragon most certainly possesses. Although not everyone in the story has Armament Haki, it is impossible for someone of Dragon's stature to not be a great user of this ability.
Enma is the strongest sword possessed by Zoro of the Straw Hat Pirates right now. What is Zoro's weakest sword? Sandai Kitetsu has to be the weakest sword Zoro has used until now in the One Piece manga and anime.
They're literally giving characters their own colours of conquerors. Kaido's is purple, Luffy's is gold, and Zoro's is green.
Shanks possesses the ability to use Kenbunshoku Haki, as revealed in his vivre card and has almost unrivalled mastery over it. He is known for being the Killer of Observation Haki as he is able to stop people from being able to use it as seen from Kidd.
Gear 5: Primary Techniques
Gomu Gomu no Bajrang Gun (Gum-Gum Bajrang Gun): Luffy can inflate his fist as big as the Onigashima island and can imbue both the armament and conqueror's haki for this attack.
Sanji's Haki Types
Sanji is an extremely skilled Haki user. During the two years he spent at Maiden Island, he trained his usage of both Armament and Observation Haki. Unlike Zoro and Luffy, Sanji wasn't taught this skill by anyone. He managed to learn all by himself and that is certainly an incredible feat.
Conqueror's Haki is one of the rarest powers to exist in the One Piece world. Unlike the other two Haki forms, this power isn't accessible by everyone but exists within only a chosen few.
Roger. Conqueror's Haki, also known as the Haki of the Supreme King, is the rarest form of Haki that only a few people in the world of One Piece are born with. Unlike the other two Haki types, Conqueror's Haki can't be learned through training and is only possessed by those who are born with the spirit of a king.
Crafted by none other than the legendary swordsmith Shimotsuki Kozaburou, Enma is one of the 21 O Wazamono grade swords to exist in the world of One Piece. Kozaburou forged his sword when in Wano and to the day of his death, he remembered this blade as his greatest creation.
He is a specialist of Observation Haki, Ryuo, and also Conqueror's Haki. Among all the Haki types, however, Luffy is especially skilled at using Conqueror's Haki, which is his best Haki type. In Wano Country, he reached Yonko level and is currently fighting Kaido in a one-on-one battle.