Fight for the future of Asgard, and obtain characters that cannot be found anywhere else. Their exclusive orbs are also available via these events. Learn more about the event format here.
Explore multi-floor towers full of rewards, with each floor more difficult than the last. Learn about the event format here.
Obtain a copy of Nachi, and/or an assortment of items. Dark-element weapons and characters will deal more damage to event enemies. Read more about the event here.