However , Gon has an idea for defeating Razor , but he needs Killua 's help to pull it off .
He uses Back to return , but Hisoka is also injured and the situation looks grim .
Gon has an idea for defeating Razor , but Hisoka needs Killua 's help to pull it off .
He uses Back to return , but Hisoka is also injured and the situation looks grim .