User blog comment:Martialmaniac/Kurapika's index chain/@comment-4932025-20151028170400

I don't think it will be related to manipulation, Judgment chain pretty much does that by having the target operate under 2 set conditions that he can't violate.

The index chain's power is probably something extremely situational that rivals Judgment chain if Togashi hasn't used yet, I don't think it will be any physical power otherwise he would've already used it against Uvo.

Maybe some Time manipulation somehow, if anyone in HxH can achieve that it's Mr OP eyes that grant him mastery over every Nen type.