The new Crystal Cleansing Realm event in Marvel Contest of Champions is a group objective in which players have to work together to open 1 billion crystals. Every crystal you open helps the community reach this goal, and as milestones are met, you’ll earn numerous rewards, including extra crystals, special profile badges, and important in-game items.In this article, we'll cover all the details of the Marvel Contest of Champions Crystal Cleansing Realm event, including its rewards, schedule, and participation requirements.Marvel Contest of Champions (MCOC) Crystal Cleansing Realm event scheduleThe MCOC Crystal Cleansing Realm Event will run from September 4 to October 9, 2024. During this time, every crystal you open will add points to the total tally. The collective effort of the Summoners will push towards the final milestone of 1 billion crystals opened.All rewards of Crystal Cleansing Realm eventMilestones are set at every 33 million crystals opened. When a milestone is reached, new rewards are unlocked for everyone. These rewards include extra crystals, profile badges, titles, and useful resources for the game. The list of rewards for each milestone is mentioned below:Milestone 1: TitleMilestone 2: 150 UnitsMilestone 3: 25 Tier 1 Primordial DustMilestone 4: Profile BadgeMilestone 5: 2 Level 1 RevivesMilestone 6: 25 Tier 1 Primordial DustMilestone 7: 5,000 5-Star Hero Crystal ShardsMilestone 8: Profile BadgeMilestone 9: 25 Tier 1 Primordial DustMilestone 10: 3 Level 1 RevivesMilestone 11: 25 Tier 1 Primordial DustMilestone 12: Profile BadgeMilestone 13: 2 Level 2 RevivesMilestone 14: 25 Tier 2 Primordial DustMilestone 15: 150 UnitsMilestone 16: 1 Mythic CrystalMilestone 17: 25 Tier 2 Primordial DustMilestone 18: Profile BadgeMilestone 19: 25 Tier 2 Primordial DustMilestone 20: 2,500 6-Star Hero Crystal ShardsMilestone 21: 25 Tier 2 Primordial DustMilestone 22: Profile BadgeMilestone 23: 25 Tier 2 Primordial DustMilestone 24: 3 Level 2 RevivesMilestone 25: 25 Tier 2 Primordial DustMilestone 26: Profile BadgeMilestone 27: 25 Tier 2 Primordial DustMilestone 28: 1,000 7-Star Hero Crystal ShardsMilestone 29: 25 Tier 2 Primordial DustMilestone 30: 1 Exalted Crystal, Profile Badge, TitleParticipation requirementsTo help with the Crystal Cleansing Event, players need to reach a minimum goal, which is one-millionth of the milestone points. You can do this by opening Daily and 4-Hour crystals available in the game.