This is only the second nen battle but it is a lot more interesting as a fight than the previous. These guys are obviously on another level than Gon or Gido. I like how it's fast-paced and that we don't get that much explanation. In fact, Hisoka's power is not explained at all. But the fight does show how different and imaginative the nen powers can be.
I like how the commentator actually has to clarify that Hisoka taking out a card from his arm and being gross doesn't give him any points and that it has nothing to do with the fight.