Hisoka, Chrollo and Illumi vs Dragonball

[Pocket-God]

With perfect teamwork, a week of prep and full knowledge on everyone in DB who is the strongest character these guys can take down?

 

[Captain Cadaver]

Depends on their opponents' mindset. If the DB characters are going for the kill, the team likely don't get past Old Daimao. If they're in character, thereby likely underestimating the Nen users for their battle power, then they may get past him but I can't see them clearing Part 1 with hax alone. Chrollo's abilities wouldn't be a game changer when he needs the opponent to tell him their ability to take it and Illumi's needles likely have a limit on who they can manipulate, given Killua was still capable of summoning enough willpower to remove his.