Items
Affix reference
Affix categories, and how greater affixes, tempers and masterworking stack up.
Categories
Affixes fall into five groups: Offensive, Defensive, Utility, Resource and Mobility. Some can be tempered and some cannot. Each slot also has inherent stats, such as movement speed on boots. The full list of affixes and tempers by class is in the build editor's dropdowns.
Building an item
A legendary has four base affixes. Tempering adds a fifth. A common order of work is: aspect, temper, sockets, enchant, masterwork. Transfiguring in the Horadric Cube comes last, because a transfigured item can no longer be changed.