Items can be Masterworked to a maximum Quality threshold of 25. Each time you Masterwork the item, it adds a random amount of Quality to the item (from 2-5 levels). Quality will also slightly boost all affix values by 1% per Quality level. Note that the cost to Masterwork now scales based off the Quality of your item.
Once at maximum Quality, you can roll it one last time for a Capstone Bonus. This Capstone Bonus upgrades a random affix on your item by 50%, including Greater Affixes. You can then choose to re-roll the Masterworked Greater Affix, without resetting your Masterworking Quality. Re-rolling the current Masterworked Affix will cost Obducite and Neathiron.
Additionally, we’re increasing the amount of base affixes found on non-unique items from three to four.