Master is the second highest difficulty setting in Diablo III. It is unlocked for all characters after any character on that account reaches either level 60 or completes Act IV, regardless of whether or not Reaper of Souls is installed. Monsters have 512% health and deal 273% damage compared to Normal difficulty. They will grant 200% more experience and gold than Normal difficulty. Imperial gems also have a chance to drop in Master and higher difficulties. Bounties will award twice as many Blood Shards as Normal.