Hello, it would be a good ideea to make available to buy from shop or bd shop an item called Drop booster, that increases the chance to get a better drop from Boss, that chance might be in % , maybe you can make drop boosters with 20% more chance, 50%, 100% .....it's up to devs how it will work. Because now drop from Boss are not that grate ...very small chances to get a talent card for example ....
Another ideea for an event this time : Make a GM/Vet with alot of HP ( to be hard to kill ) and players should kill him , fight the GM, and you can have a single winner that makes the most damage or prizes for all players from the guild that killed the GM.