I start by doing the event with my legion we were rather hot at the start, but when we saw that in 10-15 chests we loot nothing they quickly gave up, I continued on my side to try to loot a serum but nothing to do I had to do 30-40 trunk and still nothing, increase the loot rate of the enchantment stones and by the way of the L130 if possible, because as very well said Diio we need it very much to enchant our mythical and even abysmal stuff, and seen the price of stones at the auction house it just became inaccessible to improve properly in games, in short I suggest that it is better to put more interesting rewards like enchanting stones or composites rather than serum which sells for more than 200kk still at the moment.