This event is run periodically and comes with a daily mission to clear the stage which rewards a key. When you have 7 keys you can unlock the bonus stage. A different quest is available each day to complete.
Note: The enemies in each stage are heavily resistant to all elements except their counter element (for example you should bring fire units to the wind stage).
This page was last edited on 8 October 2020, at 06:42.
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