how is sukuna so strong

Sukuna is so strong because, in the world of Jujutsu Kaisen, he’s basically built as the complete package: overwhelming raw power, broken techniques, huge energy reserves, and genius-level combat IQ.

Who is Sukuna in the story?

• Sukuna is known as the King of Curses, a legendary sorcerer-turned-curse from a thousand years ago whose power was so immense his body had to be sealed into twenty fingers as cursed objects.

• Even in modern times, when he returns by inhabiting Yuji and later gaining his own body, top-tier sorcerers still treat him as the ceiling of power in the series.

Core reasons he’s absurdly strong

1. Ridiculous cursed energy (his “fuel tank”)

• Sukuna has more cursed energy than basically anyone else; even Yuta, who has more cursed energy than Gojo, says Sukuna has at least double his own reserves.

• He uses that energy extremely efficiently , meaning he can spam high-level techniques, expand his domain multiple times, and still keep fighting with barely any sign of exhaustion.

2. Mastery over cursed energy control

• He’s a master at manipulating cursed energy, able to swap between tricks like domain amplification, his innate techniques, and reverse cursed technique without any lag.

• Characters from centuries ago, like Hajime Kashimo, are stunned by how perfectly he controls cursed energy, to the point that they claim even Gojo would lose in that specific aspect if he didn’t have the Six Eyes.

3. Broken techniques (why he hits so hard)

Some of his main abilities are simply unfair even by JJK standards:

• Dismantle & Cleave – Long-range slashes that can slice skyscrapers and instantly kill powerful sorcerers; Cleave even adjusts to the target’s durability and cursed energy, so it stays lethal.

• Divine Flame – A flame-based attack that can incinerate almost anything, further expanded inside his domain into thermobaric-like explosions that wipe everything within range.

• Malevolent Shrine (Domain Expansion) – A domain with a huge effective area that lets him automatically slash and pulverize anything inside, turning the battlefield into a guaranteed-hit slaughter zone.

• World-splitting slash – An enhanced Dismantle that targets the fabric of space/the world itself, letting him cut across absurd distances and through almost any defense.

These aren’t just flashy; they give him perfect coverage from close combat to huge-area destruction.

4. Reverse Cursed Technique and durability

• Sukuna’s Reverse Cursed Technique lets him heal horrifying injuries at terrifying speed, even regenerating lost limbs and staying in peak condition during prolonged fights.

• He can also weaponize this “positive” energy against curses made of negative energy, letting him erase them as he heals himself.

• On top of that, he reinforces his body with cursed energy, allowing him to withstand hits that would obliterate most characters, like tanking a 200% Hollow Purple (though he did lose both hands).

5. Combat IQ and experience

• Despite acting cruel and arrogant, Sukuna is extremely intelligent and analytical, quickly figuring out how opponents’ techniques work after seeing them once or twice.

• He dismantled Mahoraga by studying its ability mid-fight, then building a counter-strategy tailored to its adaptation powers.

• With centuries of experience and a genius understanding of cursed techniques, he stacks strategy on top of his overwhelming stats, which makes him even more terrifying.

6. Binding vows and self-buffs

• Sukuna uses binding vows (self-imposed conditions) to power up his techniques, like altering the conditions to fire off his world-splitting slash even after losing a hand.

• He also creates complex vows around Divine Flame and his domain so that Malevolent Shrine’s “pulverized particles” can act like explosive traps filled with cursed energy, amplifying his AoE carnage.

• By stacking these vows cleverly, he bypasses limitations that would restrain other sorcerers, essentially hacking the system of cursed techniques.

In simple terms: why fans say he’s “broken”

Put all that together and Sukuna is:

• Overflowing with cursed energy.
• Near-perfect at controlling and shaping that energy.
• Loaded with high-end techniques that cover any range or defense.
• Able to regenerate and reinforce his body better than almost anyone.
• Brilliant at reading, adapting to, and exploiting opponents.
• Capable of bending the rules of his own techniques through binding vows.

That’s why, in current discussions and forum threads, you’ll see people call him “the most complete fighter” or “the final boss of JJK” rather than just another strong villain.

In story terms, Sukuna isn’t strong for one reason; he’s strong because he’s the perfect storm of talent, power, technique, and cruelty all wrapped into one character.

TL;DR: Sukuna is so strong because he has massive cursed energy reserves, elite control, overpowered techniques like Malevolent Shrine and world- splitting slashes, crazy regeneration, and genius-level battle IQ, all backed by centuries of experience and optimized binding vows.

Information gathered from public forums or data available on the internet and portrayed here.