The Phantom Troupe is Hunter x Hunter's terrifying and tight-knit group of criminals, infamous for their many successful heists and staggering body count. Led by Chrollo Lucilfer, the original members all come from Meteor City, but the lineup has changed over the years.
The Troupe values versatility and efficiency, prizing nonlethal Nen abilities such as Kortopi's or Pakunoda's higher than even some of the Troupe's most destructive Hatsus. However, combat is still a large part of the Phantom Troupe, and though every Spider is likely stronger than a large majority of the population, some members of the Troupe present more of a threat than others.
Hisoka
Despite being one of the strongest Nen users in Hunter x Hunter, Hisoka lands at the bottom of the list due to the contentious nature of his membership. His Spider tattoo is infamously fake, and he doesn't participate at all in the mission in Yorknew, instead going out of his way to subvert their efforts. Considering how important loyalty is to the Troupe, his fickle commitment makes his membership questionable at best. This is unsurprising, as Hisoka often leaves Hunter x Hunter fans with more questions than answers.
However, Hisoka had already proven himself to be terrifyingly powerful opponent far before the Spiders' introduction. With his Nen mastery, superhuman physical abilities, and incredible intelligence, Hisoka is quite often the biggest threat in the room, especially considering his blood lust and lack of morals.
Kalluto
The youngest member of the Zoldyck family and the Phantom Troupe, Kalluto's deceptively fragile appearance belies his ability to tear people to pieces. Though he believes he's the weakest Spider, he's mastered some Nen techniques, developed his own Hatsu, and is able to spy on other members of the Troupe without being detected, all of which is incredibly impressive considering that he's 10 years old.
While his attacks initially seem like a graceful dance of fan and confetti, Kalluto's movements distract from how his paper is strong enough to cut through steel and sharp enough to sever limbs. While Kalluto is physically weaker and has had a lot less experience than the others, he's proven himself to be worthy of their ranks.
Shizuku
Though Shizuku's unique Nen ability has made her the designated "clean-up crew" for the Troupe, that doesn't make her any less dangerous. She's also one of the most intelligent members of the Troupe, capable of quick strategy and analysis, which helps her close any gap in strength between herself and her opponents.
Shizuku's Nen ability, a conjured vacuum she calls "Blinky," might seem ridiculous, but its ability to inhale any nonliving object makes it an invaluable asset to the Troupe. While it's most useful outside of combat, Shizuku is able to wield Blinky as a gruesome weapon, leading to one of the most painful deaths inflicted by any of the Spiders. After inflicting precise bleeding wounds, Shizuku can then use Blinky to exsanguinate opponents, proving that a strong vacuum can be just as deadly as a sword.
Bonolenov
Bonolenov is one of the most unusual characters in the series, sporting his tribe's traditional body modifications (holes pierced throughout his entire body) underneath his bandages. With his combat style revolving around the music he creates with his body, Bonolenov fights like a dancer, gracefully dodging attacks and tiring out opponents. He also uses sound to disarm and disorient, and it plays a key feature in his Nen ability.
Bonolenov's Nen ability uses music as the focus for his conjuration, with the effects depending on the song he plays. He can use this to create weapons and armor for himself, or to summon much larger projectiles. Notably, Bonolenov uses his song to create what seems like an imitation of the planet Jupiter, which is able to throw at the speed of light to crush his foes.
Nobunaga
Nobunaga is a founding member of the Phantom Troupe, formerly fighting alongside Uvogin. A master swordsman, Nobunaga has a powerful and frightening aura that he's able to extend out so he can tell the instant someone enters his range, using his advanced perception and speed to strike immediately.
While Nobunaga has yet to be seen in genuine combat and his Nen ability remains unknown, Chrollo has designated him as part of the Troupe's attack unit. With this role, he's tasked with protecting the "lifelines" of the group, i.e., those, such as Shizuku, with abilities essential to their operations. Considering Chrollo's confidence in his combat skills, when Nobunaga finally reveals his abilities, it's bound to be impressive.
Uvogin
Although he was the first Spider to die, Uvogin's tragic end left a mark of sadness on Hunter x Hunter. Showcasing not only incredible physical strength but indomitable endurance and loyalty, Uvogin was the first example of the terrifying might of the Phantom Troupe. Uvogin (literally) embodied what it meant to be an Enhancer, using Nen to improve his physical form to the point where his entire body could be weaponized and his skin acted as a near-impenetrable shield.
Uvogin's true strength rested in his unflinching determination and spirit. He withstood torture, poison, and infestation with leeches all while fighting with the same power as before. In fact, what really killed Uvogin was his relentless drive to defend his fellow Spiders, remaining unbreakable until the very end.
Machi
Machi is the first real Spider introduced in Hunter x Hunter, and her Nen Stitches definitely set the bar for the rest of the Troupe. Winning Hisoka's approval and selected as a guard for two of the most important Spiders, it's clear that Machi's peers regard her as capable and powerful. She excels at stealth and is extremely physically resistant, but her real skill is the versatility of her Nen.
With her Nen Threads, Machi can heal extreme wounds in moments, track people across long distances, and manipulate physical bodies. She has proven herself to be adept at using her thread offensively, strangling or slicing at enemies as well as creating traps and restraints. In Yorknew, she is able to puppeteer several bodies at once, not only using them as human shields or weapons.
Feitan
The Troupe's master torturer, Feitan is a Conjurer who won the title of acting leader while Chrollo was gone. Despite being mostly standoffish and unassuming, Feitan has proven himself to be one of the strongest members. He is able to instantly decapitate multiple mafia guards barehanded and consistently dodge and parry Zazan's attacks, at one point moving so quickly he becomes imperceptible, despite "not being at his best."
Feitan does not often use his incredibly powerful Nen ability in Hunter x Hunter, capable of being a vicious opponent with his hands or sword. Feitan's Rising Sun unleashes what seems to be a literal imitation of the sun, which superheats the area around him before exploding. The only time it's been used so far is plenty devastating, and Feitan makes it clear that it is capable of being much, much worse.
Illumi
Despite joining the Troupe only at Hisoka's request, Illumi is, unlike his partner, actually inducted as a legitimate member, taking a spot alongside his brother, Kalluto, as the new 11th Spider. Using his needles as conduits, Illumi masters the whole range of Manipulator abilities at his leisure. He's capable of changing his own appearance, puppeteering both living and dead bodies, and mind control.
Illumi is powerful enough that Hisoka considers him a worthwhile ally and genuine threat, ranking his strength over that of the Zodiacs, the top-tier of hunters in the Hunter x Hunter universe. Seeing as he has yet to be in a situation where he seems even remotely concerned, it's fair to say that fans have yet to see Illumi's real power level.
Chrollo
Unsurprisingly, the Phantom Troupe's enigmatic leader has more than earned his place as the head of the Spider. Chrollo is, without a doubt, one of the strongest characters in all of Hunter x Hunter, a fact that is proven again and again. He is recognized as dangerous by the two oldest Zoldycks, and Zeno even believes that Chrollo, if he had been actually trying during their fight, may have been able to kill him.
When Chrollo and Hisoka finally battle, Chrollo unleashes the full array of his abilities to devastating effect. The fight is challenging on both sides, but Chrollo accomplishes what no one else in Hunter x Hunter has: defeating Hisoka Morow. His incredible precision, intelligence, speed, and strength combined with his mastery over Nen and the abilities he's copied with Skill Thief make him an opponent unlike anyone else.