User blog comment:Martialmaniac/Kurapika's index chain/@comment-26566783-20151027212620/@comment-5780397-20151027233116

The Holy Chain is surely Enhancement, self-healing falls in this category. Also, only my first theory was about Transmutation, the others aren't. I should have phrased it better.

As for the strengthening of his chains, this can be a little confusing: they are so strong because he uses Shu, like Hisoka on his card and Kalluto on his fan. Shu is one of the basic techniques, and Enhancers, since their primary skill consists in keeping more aura around them than other Nen users, are at an advantage. If the object is thrown, then Emitters are the best at using Shu. In his Emperor Time, Kurapika can use Shu like an Enhancer, but all Nen physical fights use Enhancement to an extent.The point is that the chains themselves are just regular chains, until Kurapika uses Shu on them: that is why they are not listed as depending on Enhancement. They are that strong only when he uses Emperor Time, however. Is this what you meant?