User blog comment:Prince of Erebor/Weakest Nen ability/@comment-14902757-20151018003714/@comment-4753851-20151018010848

Yeah, since Nen is often a reflection of the user's personality it doesn't necessarily translate into an offensive ability. So, the question should be a little more specific. Like what is the weakest offensive ability or what was the weakest ability according to Nen type like Gido or Kastro. Also since Nen is so personalized an ability can be incredible strong in one area but only average overall. Example: Kurapika's ability is strong, but really only towards members of the Phantom Troupe. So it all depends.