Cataclysm Missions or Cataclysm Critical Missions or Cataclysm Story Missions are story missions related to cataclysms. These are available to anyone after completing the Critical Path mission Incursion. However, in terms of continuity, these happen after the main story of the Legend of the Heart of Rage ends.
Each cataclysm will contain new missions which are limited by time. Once the seasonal cataclysm ends, there will be no access to these missions.
These missions may return as Legendary Missions in the future. However, currently, they cannot be accessed in game.
Echoes of Reality Missions[]
Echoes of Reality is a cataclysm that occurs after the Heart of Rage is silenced.