You've perhaps already heard about it: the scorching hot summer upgrade event is running! Until 17th August, for example, you can swap in 2 coupons for upgrade scrolls for 1 upgrade scroll of the next level up (to a maximum of level 12). Or how about an upgrade attempt to level +11 with Fluorite Stones?
The event will get even brighter with a happy hour: for the whole of Tuesday, 16/8/2016 (0:00 till 23:59), you will receive an additional 15% El Coins with every top up!

Enjoy the summer sun in Elios,
The Elsword Team