It varies and is random (I'm going to check that though ). From promo items to valuables (diamonds and emeralds) right down to more common (but still expensive) items such as XP bottles and obsidian. Note: this is all hear-say on my part, many of my friends have done the event already and shared their findings. But also check out the several posts in this thread to get a good overview.
Guys seriously be conservative about your chest choices. I blew my first five on pretty common ones until I found a really hidden chest and realized that there were better ones than what I had been looking for. Don't make the same mistakes I did, sonny.
Congrats EMC on 400k members....... The event was awesome, loved the design of the place it's the res i always wanted.... Great prizes and just so awesome to partake in the event. Thanks to all who made the event possible (400k members), also thanks to the staff for your hard work in creating the event.
Congratulations EMC community! 400k members is truly a milestone! Through the /event I got three marlin leggings, so keep an eye out
So here's my mad loot! Pretty nice event here! Hoping that another event like this happens again soon!
Congrats EMC! I got gypped on the event though, I clicked on 2 chests and they didn't give me anything T_T Edit: False alarm, I found the things
Wait so you left clicked on a chest, clicked the little green wool, and still didn't get anything!? That sucks.