What Weapons Did Killua Brother Use In The Chimera Arc?

This question always sparks debate among fans — here's how I see it, with a focus on what actually shows up during the 'chimera Ant' arc of 'Hunter x Hunter'. The one brother who has any real presence in that arc is Illumi, and his toolkit is all about precision and control. Physically, Illumi uses specialized needles and thread-like weapons — think tailor’s needles but deadly and imbued with his Nen. He’s an assassin who blends physical tools with Nen techniques; his needles can be used as stingers, implanted to control or paralyze targets, and he often pairs them with his uncanny ability to manipulate people’s behavior. In the arc he doesn’t go on a big flashy assault like some characters; he’s more of a subtle threat, the kind that doesn’t need to shout to be terrifying.

If you widen the lens to include Killua’s other siblings, the picture gets more varied, though most of them don’t play frontline combat roles in the 'Chimera Ant' storyline. Kalluto’s weapon motif later becomes paper-based — folding and manipulating paper into deadly shapes and controlling puppets with Nen — but he’s not a major combatant in the Chimera Ant Invasion itself. Milluki’s “weapons” are mostly technological: hacking, remote bombs, surveillance gear — lethal in their own right but not the sword-and-gun stuff. alluka (or Nanika), meanwhile, is an entirely different kind of power that isn’t a conventional weapon at all, so she’s not counted among the fighters. So, in short: Illumi’s needles and similar assassination tools are the ones you see tied to the Zoldyck name during that arc, while the others either don’t engage or bring non-traditional tools.

I love how 'Hunter x Hunter' treats the Zoldycks — they’re terrifying because they combine mundane, almost aristocratic trappings (needles, fans, paper) with twisted mastery of Nen. Watching Illumi’s measured presence in the 'Chimera Ant' arc reminded me that sometimes the scariest characters are the quiet ones who don’t need big power displays to change the course of a scene. It’s chilling and oddly elegant, and it’s one of the reasons the arc stays stuck in my head.

Here’s the quick rundown from my point of view: during the 'Chimera Ant' arc the main brother who actually shows up in a threatening way is Illumi, and his signature arsenal is needles and thread-like weapons enhanced by Nen. He uses them both as stabbing/throwing implements and as tools for control — classic Zoldyck subtlety rather than loud spectacle.

The other siblings don’t really bring handheld weapons into that arc. Kalluto is more of a paper/fan user later on, Milluki prefers tech and remote devices, and Alluka/Nanika isn’t a typical fighter at all. So if you’re listing what Killua’s family used in the Chimera Ant storyline, Illumi’s needles are the main thing worth noting — a creepy, precise brand of danger that fits the family to a tee. I always find that blend of quiet menace and deadly skill super compelling.