Hisoka destroying the clone army with a head was fun to watch, and I love how he's been able to keep his composure even though he's been bumrushed for the entirety of this fight. As far as the 2nd half of the chapter, the way I read it was Hisoka using Chrollo's explanation to create his options. The pertinent rules in this case were that Chrollo couldn't use Gallery Fake or the create a "Chrollo clone" part of Convert Hands without using both of his hands, Sun and Moon seals don't disappear, his bookmark can only let him use two abilities at one time, and gallery fake clones disappear when the ability is released. Hisoka is counter attacks based on these assumptions, but when he sees he only killed a "Chrollo clone" it means that Chrollo must have Black Voice active while he used the double hand part of Convert Hands at some point to make the clone. This should mean he had to release Gallery Fake, but the clone that Hisoka was using hadn't disappeared. Thus Hisoka realizes one of his assumptions are wrong. Sun and Moon seals don't disappear, and the clones that have the seal also don't disappear. Chrollo only mentioned the first part in his rules summary but conveniently left out the second, which is why Hisoka says he misled him. Somebody can correct me if I messed that up haha
–- Update From New Post Merge ---
That fact the Kuroro's plan are getting more complex by the page will not end well for him. At least is what a think.
So far the paln has been:
Go to crowd -> use "galery fake" and create clones -> use "convert hands" to change apparence with one of them -> use "black voice" to control that one -> use "order stamp" and comand clones to break Hisoka -> While Hisoka deals with clones start placing "Sun&Moon" on clones so they only disappear with explosion -> Use "black voice" to lure Hisoka into hunting the fake you -> return to "galery fake" to make more clones to substitute those without "Sun&Moon" -> ? -> porfit?
I doubt it will work, but damn, Kuroro sure put a lot of effort on this plan.
I think Chrollo was hoping to finish him with his hit and run strategy, but when Hisoka counter attacked he immediately switched back to the defensive. The Chrollo in the ring had his book out, but when we see Hisoka hunting him in the crowd the book is gone and the clone is only bluffing that it's under his shirt. Since the CH clone doesn't get the originals abilities, we can assume it wasn't a clone in the ring. I have no idea what Chrollo is doing with time he gained with this distraction, but I doubt he's going to try hit and run style again. Hisoka doesn't get distracted enough by the mob for it to pay off.