>>279874831
>The problem is that Chrollo's upgrade is never explained.
It doesn't have to be. We understand the rules behind augmenting abilities. We understand how contracts and limitations work on a conceptual level. You might as well just way that Gon-san is an asspull and prove you don't get the series at all.
>Chrollo needed to hold the book, but later he doesn't. Why? Never told
Because he recognized it was a power, it impeded his ability to use power like Covert hands or Gallery Fake. And he made a sub-ability to help him overcome it. It's literally told to us why he did it.
>"in exchange for blindness, I'll always know where the chain user is".
Kurapika is not a threat to them anymore you moron.
>He never said the restrictions or how he overcame needing one hand
He dosen't need too. Bookmark
>>279874888
>What stopping him from "training" and the next time that we see him he can just take people's powers by looking at them?
Ability theft can only be cheap if it's temporary going by the series. Leol can steal a power by seeing it and getting a favor but he can only take a power once per favor. Chrollo permanently steals it. Going by other abilities and Zeno's own confirmation. He requires more conditions to accomplish this. Temporary possession == easier restrictions. Permament theft == big restrictions.
> I can't wait for Gon to summon all of his power he'll ever have with no explained drawback
He already did and the drawback was near death and he still can't use nen
>God speed is just an extension of Killua's abilities with no drawback
The drawback is he loses charge over time.
>The audience knows nothing about nen because
You are speaking for yourself
> Please explain contracts/limitations
Contracts and limitations are basically the same thing. A limitation is a contract where the user gives themselves a detriment for a proportional amount of gain. This gain however is based on some combination of objective and subjective value.