Challenge Events are unique to r/ClashOfClans Events, involving attacks on a challenge base following specific army requirements or rules. The best attacks win!
Only one attack is allowed.
Participation is limited to one account.
Preparation: Prepare your Friendly Army for the challenge and check the attack window in the #attack-window channel to make sure it is OPEN.
Ping: Notify the Lead Event Coordinator, Spencer, in the #ping-spencer-here channel when you're ready. You will receive further instructions telling you to send your request to join the Events Clan.
Attack: Once invited to the Event Clan, you have 10 seconds to begin your attack. Complete your attack, and your results will be recorded.