Tier set
Tier sets, often shortened to simply tier, are class-specific armor sets that traditionally drop in raids. Tier added since patch 9.2 can also be obtained by converting other equipment at a catalyst. These sets offer powerful set bonuses and a unique visual appearance for each class.
The related term raid tier describes a group of raids that drop loot around the same item level. Tier sets may be spread across different raids within the same raid tier; for example, the shoulders may drop in one raid and the chestpiece may drop in another.
List of tiers
Note: Raid tiers marked with an asterisk (*) had no actual armor sets. Instead, they had collections of armor that formed transmog sets—one for each armor type. They are included here for the sake of completeness.
Notes
- Many tier sets have 5 pieces that count toward their set bonus, plus some additional pieces that do not. These extras are referred to as "off-set" pieces among players.