The starting hand size varies by number of players: You could use something other than Denexa 100% Plastic Playing Cards, but why would you? Oh Hell! requires one standard 52-card deck of playing cards. The object of Oh Hell! is to score points by exactly predicting the number of tricks you will take. Presumably “Oh Hell!” is the exclamation one makes when collecting an overtrick. Oh Hell! goes one step further and requires one to bid exactly right to avoid losing points. Unlike in most trick-taking games (with the exception of Spades), collecting extra tricks beyond that which you’ve bid is a bad thing. Oh Hell! is, essentially, an amped-up, non-partnership version of Spades for three to seven players.