If the category is cards you could have in hand that could cause taking a Curse from Torturer, to improve your hand, then I would not include Ambassador. Giving your opponent a curse is good, but it hurts them as opposed to helping you. Masquerade still fits since you have to pass something, and the rest of your cards could be good.
If that is the correct category, then Hunting Party is at least an honorable mention. Taking the curse would allow it to skip over curses already in your deck.