Togashi dropped a pretty major reveal in HxH 408, as he revealed through Morena the approximates of the rarity of each nen type. This arc could be the last one for Hisoka in HxH. Here are some ...

Aside from Hatsu, Hisoka can skillfully apply advanced techniques and combine different types of Nen into his attacks. The Transmuter's extreme bloodlust also gives him an upper hand in many battles.