Hunter x Hunter 2011

[Archangel]

Kurapika based his ability around his needs, he wanted to trap the spider. Your ability is what you make of it, this is a not my opinion but something that we've been explicitly told.

[Buffalobiian]

Your ability is what you make of it,

What are you trying to say? You can choose, or you can't? I'm saying that you can choose your ability, and the closer it matches your natural affinity the easier/more powerful it will be.

You obviously choose the ability.

My point was, if you choose your ability to be "I purge other people's nen" then you have an ability that has almost no combat applications.

Given that most Hunters choose their abilities for fighting, it's not at all surprising to me that Nen purging is rare.

The whole idea of a nen-purging ability isn't to make it good for combat. It's to make the other person suck. You give yourself a nen-purging ability while training your own fighting ability without Nen. If Killua had Nen-purging as his ability, he'd turn other people into normal folks while he remains a top assassin. Imagine Rock Lee with an ability that seals Ninjutsu/Genjutsu.

It's not useful against non-Nen beings (say, physically strong chimera ants), but it specifically makes you a Nen-user assassin. In the regular human world, strong nen users are likely to be the strong people around.

Gon and Killua are, however, one in a million people. If they just forgot the diagram and pushed forward, they'd probably discover there's nothing holding them back and find out Gon's old man is waiting for them beyond such doctrines. In the first place, there's no single technique to purge foreign nen. You can already reject, to a degree, some nen attacks simply by concentrating your own nen to the part of the body getting hit. For all we know, there might be some very simple guru technique of purifying your body from all nen, be it your own or someone else's. Mainstream dogmatic people just would never realise such a thing, being bound by their own rules. It would probably take someone as eccentric as Ging to discover the whole truth.

I'm sure the system was discovered by some Nen Sage of the past and not some mainstream Hunter Administration Hotline. The categories are designed to tell you what you should do to maximise your potential. You're right that Killua and Gon are 1-in-a-million progidees and can do different things. If Gon went to become a specialist instead of an enhancer though, he might as well be a normal specialist instead of being a 1-in-a-million Enhancer.

As for the "specialist" thing, specialists are people who don't fit into the aforementioned categories. You use the water divination technique to find out. They're the outliers. As far as we know, while Gon and Killua are good they aren't these "outliers" who do weird and wonderful things. They're good - but a specific type of good.