Dota 2 update eliminates duplicate treasures
Dota 2 players will no longer receive duplicate items when opening treasures, according to the Dota 2 blog. Each time you unseal a treasure, you'll find a different item - and from now on, you'll also have a chance to score a bonus reward, possibly granting you two or more items for each unsealing. Once you've found every item, the treasure pool resets and you can unlock them again in a new random order.