About Pack Tricks, from BoardGameGeek:
Pack Tricks is a four-player trick-taking game with a forcing contract and a fixed trump suit. What makes it unique is that you choose your contract during the round by drawing a Team card instead of playing a trick.
If another player chooses the same type of contract, you must work together to reach the required number of tricks. Otherwise, you'll have to succeed on your own. Playing your card early lets you prepare for your goal; waiting gives you insight into others' intentions but limits your options.
Victory is still an individual achievement, and cards with a value of 4 result in personal penalties. You must therefore cooperate at the right moment while protecting your own score.
