Hoffer

From BoardGameGeek:

Hoffer is a precision bidding card game for 2 - 4 players. In this game, players will secretly bid on how many tricks they will try to capture. Accuracy is key as players who hit their bid will earn the most points. Players wrestle with changing hand sizes, Jacks that move up in rank, and Jokers that automatically win or lose the trick. With the use of a tight 34 card deck, the Bower system borrowed from Euchre, and jokers that replicate the wizard and jester from Wizard, players will scramble for points as they travel up the river. Whoever has the most points at the end of the final round wins the game.