Power systems provide structure to the storyline and fights, allowing characters to undergo remarkable growth and creativity.

For instance, Chakra inNarutois a life vitality that is a combination of physical and spiritual energy.

Similar to most anime series,One Piecealso embeds a unique power system called Haki.

Luffy demonstrating his Gear Five power form in Episode 1074 of One Piece.

Image via Toei Animation

However, the series' progression presented Haki, which proved its potency in altering the complete power structure.

It was her wretched past attributed to Big Mom’s complex and terrifying character development.

Kaidou’s haki is considered to be quite potent, titling him as the World’s Strongest Creature.

0388694_poster_w780.jpg

Kaidou’s Observation Haki enables him to sense the potential of his foe.

Observation Haki is Katakuri’s most impressive ability, allowing him to glimpse the future for a few seconds.

Similar to Luffy, Katakuri releases Mochi Thrusts with Haki, capable of dealing immense damage.

Cast Placeholder Image

7Monkey D. Luffy

First Appearance: Episode 1: “I’m Luffy!

The Man Who Will Become The Pirate King!”

Luffy’s Conquerors Haki was potent enough to negate Douglas Bullet’s haki inOne Piece: Stampede.

The character Big Mom sits on a chair in a pink polka-dot dress with pink hair and a pink pirate hat in One Piece

Image via Toei Animation

Intriguingly, Luffy knocked out 50,000 Fishmen using his Conqueror Haki.

6Silvers Rayleigh

First Appearance: Episode 8: “Who Will Win?

Showdown Between The True Powers Of The Devil Fruit!”

Kaido the dragon using Uo Uo no Mi, Model Seiryu in One Piece.

Image via Toei Animation

The Dark King Silvers Rayleigh’s moments have always been iconic.

His excellent use of Haki ranks him among the most fearsome characters, even scaring Blackbeard, a Yonko.

Even Whitebeard’s crew was the most interesting one, where Whitebeard considered the crew members as his son.

Katakuri towers over Luffy in One Piece.

Image via Toei Animation

Despite being able to use all forms of Haki, Whitebeard’s illness imposed severe restrictions.

You want my treasure?

it’s possible for you to have it!

Luffy looking angry with long hair in One Piece.

Image via Toei Animation

I left everything I gathered together in one place.

Now you’ll just have to find it!

The efforts were visible when Ace collided with Kozuki Oden’s Enma.

Silvers-Rayleigh smiling wickedly in One Piece.

Image via Toei Animation

3Monkey D. Garp

First Appearance: Episode 68: “Try Hard, Koby!

It’s your damn family again.

“Monkey D. family is well-renowned for its strength and influence, and for a good reason.

Whitebeard using Gura Gura no Mi devil Fruit One Piece.

Image via Toei

2Red-Haired Shanks

First Appearance: Episode 4 “Luffy’s Past!

Also, Shanks' Armament Haki was potent enough to block Akainu’s Magma Fist.

So is Joy Boy, who lived 900 years ago at the start of the Void Century.

Pirate King Gol D. Roger smiles sinisterly in One Piece.

Image via Toei

However,Joy Boy had sealed his Supreme King Haki within a knot on a rope inside Emet.

The eventual release of this Conqueror’s Haki shows us the power level of Joy Boy.

KEEP READING:10 Perfect Anime Series You Should Watch Immediately

Garp smiling with a glowing fist about to punch in One Piece.

Image via Toei Animation

Shanks looking over his shoulder in shock in One Piece.

Image via Toei Animation

The character Joy Boy tips his straw hat and smiles a creepy smile with a sunset behind him in One Piece.

Image via Toei Animation

One Piece