Event
From Friday 18:00 to Sunday 23:59 CET every monster and Meteor drops 50% more items, and experience is tripled on all maps.
The event stacks with the Dragon God's Blessing and the EXP ring, but not with the Event Scroll from the Itemshop.
Tip: the Snake Field and the Grotto of Exile are the best maps for the drop bonus, and Sohan Mountain is the fastest place to farm experience below level 75.