Journey to Un'Goro is the fifth expansion to Hearthstone, featuring the ninth new card set with 135 collectible cards, and the new Maiev Shadowsong hero. The expansion was released on April 6, 2017 in the Americas region, and April 7, 2017 in the Europe and Asia regions. The expansion features the new Adapt mechanic, the new Quest card type, and adds the new Elemental minion type.