Two new treasures have been added (Treasure of Sinister Arcanery and Treasure of the Cosmic Abyss) that contain brand new sets with a rare chance to grant a new courier or a new Clockwerk set. However, unlike previous treasures, no seal or treasure drop is required. These treasures are purchased directly from the Dota 2 Store or from inside the Dota 2 client. Once yours, all you need to do is open them up to receive one of the sets. The treasures can also be traded and listed on the Steam Community Market.