Catharsis

About Catharsis, from BoardGameGeek:

Catharsis is a solo & cooperative board game for players who are heroes trying to stop one of the many corruptions spreading through the lands. The game requires strategy, cooperation, and a touch of luck to succeed as the party fights through traps, monsters, and more. Each game is a different experience as each hero has a deck of powers they draw from, creating unique synergies every playthrough. Moreover, the players must hunt down a boss by progressing through its Boss deck, a unique deck of cards for each boss and randomized for each game. The players must carefully balance using their skills and creeping closer to death with burning through their morale and giving up in despair. -description from the designer