Roronoa Zoro is the combatant of the Straw Hat Pirates and the first person to join Luffy on his journey to becoming the Pirate King in One Piece. Zoro set out from East Blue's Shimotsuki Village to become the greatest swordsman in the world, a goal he continues to chase today.
His skill with the blade is immaculate and only a select few swordsmen can hold their own against him in combat. But Zoro is a formidable personality even without his swords and there's a lot he can do without relying on them.
10 Zoro Is A Born Leader And Has Displayed That Ability Quite Often
Although Luffy captains the Straw Hat Pirates, there are several members of the group who have displayed the ability to lead on various occasions, such as Zoro, Jinbe, Sanji, and Nami. Being Luffy's right-hand man, Zoro usually assumes the role of second-in-command and takes control of the crew, displaying great leadership skills in the process. On certain occasions, Zoro has been mistaken for the captain of the crew because of the aura he gives off.
9 Zoro Can Use Small Knives To Attack Others
When it comes to combat, Zoro doesn't always need a sword to take down his enemies. After the two-year timeskip, Zoro's skill has become refined enough to the point where he can use a small blade to devastating effect. This was first seen in Wano, where Zoro was wrongfully convicted of murder, and to get out of the situation, he made use of a seppuku blade. His usage of the small blade was so incredibly refined that he managed to slice through an entire building with ease.
8 Zoro Can Attack Using Mutoryu
Zoro tends not to rely on martial arts while fighting his opponents even when he isn't equipped with his swords. This was first seen during the Long Rind Long Land arc where Zoro was forced to come up with a way of fighting without swords. Eventually, he developed the Mutoryu, or the No Sword Style. Using this power, Zoro is able to generate sword techniques, such as Tatsu Maki, even without swords in hand.
7 Zoro Can Tank Incredibly Powerful Attacks With Ease
Zoro has displayed great endurance on countless occasions throughout One Piece. During the Thriller Bark arc, Zoro was able to take all of Luffy's pain on top of the damage that he had already received, and even when Kuma thought he'd die, he managed to survive.
On Onigashima, Zoro took the brunt of Big Mom and Kaido's attack, albeit with his swords. Although the attack shattered his bones, he continued fighting and injured Kaido with his Nine Sword Style.
6 Zoro Has Incredible Physical Strength
On top of his endurance, Zoro also has tremendous physical strength which comes from the intense training that he's undergone over the years. Zoro's strength was enough to lift an entire building with ease during the Alabasta arc of One Piece. With his tremendous power, he was also able to deflect Oars' monstrous fist. After the timeskip, Zoro has only gotten stronger as he constantly trains to improve.
5 Zoro Can Use His Aura To Intimidate People
Zoro has been likened to a demon by several people in the story. In the very first saga of One Piece, Zoro was called a demon by Koby, and moving forward, this comparison was further strengthened by the likes of the Marines at Enies Lobby and Kaku of the CP-9. At times, Zoro's aura alone is strong enough to make people lose their footing, as seen when Monet couldn't move upon sensing the killer intent that Zoro's aura channeled and lost without Zoro doing anything.
4 Zoro Can Measure Power Levels With Observation Haki
During the two-year timeskip, Zoro learned the usage of Haki from Dracule Mihawk at Kuraigana Island in the Grand Line. Although Zoro specializes in Armament Haki, he has a decent hold over Observation Haki as well.
His skill with this Haki is good enough to measure the power level of those around him, and he displayed this power on a couple of occasions since Fishman Island.
3 Zoro Can Use Observation Haki To See Through Attacks
Zoro can also use his Observation Haki to see through most attacks that come his way. At Fishman Island, he blocked the water bullets of the Fishmen with the hilt of his sword thanks to this power. Zoro could also easily dodge and counter the attacks of someone as strong as Killer without much trouble. His skill with this power was also good enough to block Batman's arrow aimed at Tsuru.
2 Zoro Can Use Armament Haki To Defend Himself
Thanks to Mihawk's intense training, Roronoa Zoro specializes in Armament Haki. He displayed this power against Pica of the Donquixote Pirates and managed to take him down without much trouble. Although Zoro usually defends with his swords, he can also defend himself by coating his body in Haki, just like any other user of this power. Given that his usage of Haki is great, Zoro's should be extremely tough to get through.
1 Zoro Can Utilize The Power Of Conqueror's Haki
Zoro was confirmed to be a user of Conqueror's Haki during his fight against the Yonko on the rooftop of Onigashima. Using Nine Sword Style as his last resort, Zoro somehow managed to tap into the power of Conqueror's Haki and use it in conjunction with Armament Haki to injure the Yonko. Although Zoro cannot channel this power without swords, he can certainly knock people out with it once he masters it well enough.