Hisoka and Chrollo have a long history together. He openly challenged Chrollo and was defeated. That being said, it should be emphasized that Chrollo had a significant amount of planning time in order to pull this off, and he even recognized it. Furthermore, it is possible that Chrollo had covert assistance from Troupe members in this battle, which is how he was able to beat Hisoka in the first place. Hisoka would win in a fair battle. 4 Cheetu doesn't have a chance: he's all talk and no action.
.
You were inside the hall where the auction was going to take place. You adjusted your suit, feeling uneasy about having to wear such a fancy attire that Kurapika insisted on rather than a basic fancy dress. It wasn't ideal, but you understood you were meant to be undercover to put Kurapika at ease with your presence.
