Boss Battle

From BoardGameGeek:

Boss Battle is a one versus many tabletop strategy card game featuring many ruthless bosses and four distinctly designed classes of heroes who use their unique skills to duke it out in a casting board system. The Boss dominates the board throwing out obstacles the heroes must learn to work together to overcome. As the game progresses, heroes level up, and build their deck to adapt to challenges on the casting board. Heroes must think strategically, the Boss only gets stronger as the rounds progress! With the variety of unique heroes, and bosses with diverse playstyles, players face new challenges every round. No two games are the same. Take pleasure in crushing your friends...and enemies, in Boss Battle! Play 1-4 players in cooperative, competitive or solo gameplay modes! -description from the publisher