User blog comment:Joji200/Feitan vs Hisoka/@comment-5780397-20141202114237/@comment-5780397-20141203111631

3) I'm pretty sure Chrollo would be unable to steal an ability in battle, even less one of Zeno's techniques (and keep in mind he has many). Zeno guessed the conditions that allow Chrollo to steal skills basing purely on the information that Silva gave him, despite the fact that there are many ways it could be done (take Leo as an example), so he would not let it happen. It is true we do not know the other abilities Chrollo has stolen (for your information, he might have those of a pretty strong Yu Yu Hakusho character, since he was in the book), but I doubt he is not as skilled as Zeno in using Nen in battle (he would be unable to defend from Zeno's Ryu, for example, as he admitted), though I'd add a "yet". Also, Zeno bombarded a whole palace without effort, and created dragons that could fly for kilometers even above the clouds. Sorry about the ugliness of this comment, I'm in a rush.

5) Exactly. Plus, I think the only way Killua can rival Feitan's sword in close combat would be using Kanmuru, which would allow him to land a few good blows, but after that he is doomed.