User blog comment:Martialmaniac/Chrollo VS Hisoka/@comment-26005711-20160423101938/@comment-26005711-20160424100940

The same was happening against Kastro. I think Hisoka doesn't want only to win, he wants to see Chrollo's full power, that is the reason why he didn't try kill Chrollo at the beginning (Hisoka is fighting to enjoy the battle, Chrollo is fighting to win the battle).