Notorious for his cruel and deceitful fighting ability, Hisoka has proven to be deadly. His deviousness and volatility has made many opponents have difficulty anticipating his next move, and this has led to him winning many battles. Using Shu powered poker cards as his primary weapon, he throws them with ease and deadly accuracy.
Also, he very intrigued by Gon and the potential this young boy has to become an adept and powerful adversary. Hisoka, ever looking for a strong opponent, is willing to aid, or at least not defeat prematurely, someone that could develop into a future opponent.

The secret weapon of the Hellsing organization, Alucard is a vampire, specializing in killing other vampires. At first glance he seems to be nothing but a rather odd gunman, but when he truly unleashes his powers, it becomes quite clear that he is not a mortal.After walking the night for half a millennium, he is constantly seeking a worthy opponent, and with his powers of regeneration, strength, and shape-shifting, not to mention his army of familiars, he lays waste to any of his master's enemies.However, beneath his cool and heartless exterior lurks a dark and tragic past, and a longing for the only thing an immortal can never have.