What are the rewards connected to Mythic +10 boost?

By completing a mythic +10 dungeon in time you will receive at least 3 items at the end of the run with an item level of 370+. Our boosters will trade any items they receive to you. Also, at the end of the week (regular Wednesday reset), a weekly chest in your class will be waiting for you with a 380+ ilvl item. If you haven’t already completed a mythic +10 dungeon in time, you will also receive a Keystone Conqueror achievement.