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Top 5 Sword Art Online Characters: Powers And Abilities

Sword Art Online characters

Sword Art Online characters are now recognized worldwide due to their great action sequences and storyline. Kirito, Alice, and Yui are some of the favorite cosplays for fans. Sword Art Online was a Japanese novel written between 2002-2008. Due to its great success as a light novel, it was further animated in 2012. The plot takes us into the future, where technologies are capable enough to make a massively multiplayer online role-playing game (MMORPG). Akihiko Kayaba created a game with virtual reality MMORPG itself and named it SAO (SwordArt Online). On November 6, 10,000 players logged in to SAO to experience the new game. Among the 10,000 players, there was Kazuto Kirigaya, a 14-year-old boy who might have some idea to get out of the game.

Also known as Kirito figured out that completing the game was the only way out and starting the adventure to conquer the 100 floors of Aincrad (steel tower of 100 floors). But the blunt truth is if they suffer death in the game, they might also die in real life. They never know.

This novel was adopted in 12 manga volumes. Through the course of these manga, Kirito goes on different adventures to save himself and his friends in different MMORPGs. Throughout this adventure, he encountered more than 300 players. Of course, it is tough to decide who is strongest if there are so many competitors. That’s why we brought you this list of some of the most powerful and fan-favorite characters of Sword Art Online.

1. Kirigaya Kazuto or Kirito

Let us start with our protagonist with the username Kirito. As he was one of the beta testers, he got a ridiculous amount of power and abilities, not to mention his weaponry. But anyway, good for him. Let us do our job and see what kind of powers he got.



Kirigaya Kazuto is a 14-year-old kid who was one of the chosen few to test the beta version of Sword Art Online. It gives him a clear advantage above all when he re-entered the game using Kirito as his username. Due to his utter skills, he was also known by the name Black Swordsman. He got into relationships in the virtual world too. He married Asuna and adopted Yui (an AI). She was her daughter inside the game.


He was just a normal human child outside the game but a complete monster when inside. Some of his game abilities consist of:-

  • Superhuman Strength.
  • Mastered in swordsman and hand-to-hand combat.
  • Regeneration (it depends upon the inversely proportional to the strength of his opponent) which means the stronger the enemy is, the more time it takes to regenerate.
  • Skills Amplification
  • Enhanced senses, can fly with wings for 10 minutes.
  • Magical Powers
  • Manipulation, he can manipulate ice, fire, earth, time, and to some extent life. We have seen him covering his sword with ice and fire.

Of course, this kind of power makes him one of the strongest characters in SAO but not unrivaled. This brings us to second place.

2. Kayaba Akihiko or Heathcliff – Strongest Sword Art Online Character Villan

Everyone who has seen Sword Art Online has heard the stories of Heathcliff. His powers and intelligence combined bring him to the second sport on our list. He is one of the fearsome antagonists and the prominent villains of the Aincrad arc.



Kayaba Akihiko was the development director of SAO. Logged in with the username of Heathcliff, he was the mastermind behind the idea of the slaughterhouse Aincrad and the designer of the Cardinal System, Nerve Gear, and The Seed. He carries a one-hand sword and tower shield called Liberator. Heathcliff was named Man of Legend because of the incident when he cleared the 50th floor all by himself in 10 minutes. Also known as the strongest player in the entire game and was a force to reckoned with.


  • Creator of the game SAO, it gives him free access and more advantage being the creator of the game.
  • He was the owner of the first Unique Skill named Holy Sword.
  • Superhuman strengths.
  • Mastery in hand-to-hand combat and swordsmanship.

It was rumored that Heathcliff HP never reached the yellow line. These facts make him a strong enemy and make the storyline even more interesting.

3. Asuna

Asuna is the companion of Kirito and one of the strongest characters in the story. In the real world, she was the daughter of the former CEO of RECT Inc. Captured in-game along with 10,000 others, she was one of the 300 who remained after the game was completed. She remained in the spotlight in the Aincrad arc and is one of the fan-favorite characters of SAO.



Asuna was the main heroine of SAO. She raised her rank very fast and became the Sub Leader of Knights of the Blood Oath. She got incredible power and skills. People also call her The Flash due to her lightning-fast speed and skills as a swordsman. After she meets Kirito, she helps him clear the game, and she falls in love with him, leading to their marriage. Their love was eternal, but they were never really able to get married in real life. Asuna was captured and taken hostage in the next arcs, not quite justified with his character, but it was the story’s need.


  • Lightning-fast speed and reflexes.
  • Superhuman strength and agility.
  • Mastery in hand-to-hand combat and swordsmanship.
  • Manipulative powers
  • Self-healing.

Also Read: Sword Art Online Progressive: What is The Anime About?

4. Alice Zuberg

One of the newest characters of SAO, Alice, is one of the main characters in the Alicization Arc and a supporting character in the Unital Ring Arc. Kirito and Eugon were her childhood friends, but she was taken away by soldiers to make her an Integrity Knight.  She was the daughter of Gauspht Zuberg, chief of the village. Alice was a girl with quite a hand in majestic arts and became a strong Integrity Knight. She becomes popular among fans instantaneously after her first appearance. One of the top 5 most powerful characters of Sword Art Online, she once managed to take on both Kirito and Eugon.

Alice Zuberg

Alice Zuberg


  • Highly skilled fighter.
  • One of the Integrity Knights.
  • Regeneration.
  • Highly skilled in magical arts and got various powers.
  • Skills Amplification can enhance her power, fighting abilities, etc.
  • Manipulation.

She was forced to become an Integrity Knight, but she made her way to help her childhood friends Kirito and Eugon to fight with human civilization against the invasion of the Dark Territory Army.

5. Sugou Nobuyuki or Oberon

Fairy King Oberon is the main antagonist of ALfheim Online, Fairy Dance arc. In the real world, Sugou Nobuyuki is the chief of the research institute of RECT Inc. as well as Asuna’s ex-fiance. Sogou holds a grudge against Asuna because of their broken engagement and always tries to kill Kirito and do pervert things to Asuna. He is one of the strongest characters in ALfheim Online due to his high status and power in the real world. He is a very greedy, rich, smart, self-centered psychopath, which makes him a villain out of the virtual world too.

Sword Art Online characters - Oberon



  • He can fly. (Fairy King)
  • Have great command of game codes.
  • Use very powerful magic.
  • Has an army of Faries monsters.
  • Regeneration.
  • Manipulation.

Of course, many can debate that there were many more strong characters than Oberon in SAO. Some characters were very close runner-ups but didn’t make it to this list. Here are some honorary mentions: Yui (Kirito and Asuna’s adopted virtual child), Shino Asada, Eugeo, and Tiese Shtolienen. But we must also consider their intellectual power and influence into consideration. An elephant may be stronger than a lion, but a group of them can flip the frame in an instant. With that in mind, here we conclude our list of the top 5 most powerful Sword Art Online characters. Hope you like it!

Also Read: Best Swordsmen In Anime That You Should Know About

Written By

Hi, Aryan Kumar here! Dedicated to delivering you quality content. I started my journey as a content writer last year after completing high school. On the journey to becoming a great writer learning many things along the way. Strive to do better than yesterday.

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