The Mutation Pack adds 27 cards to alter the behavior of any leviathan, creating new challenges for your climbers.

Long ago, the once-gentle leviathans lost their minds and tore the world apart. After generations of hiding and struggle, humanity discovered that the frenzied leviathans can be restored. Climbers willing to take the risk must explore the wilds and work together to remove a series of binding crystals to heal the leviathans roaming the world.