Tier 18 is the armor set associated with Patch 6.2.0. It is obtained from Hellfire Citadel. All the tokens can be used immediately to gain the set item associated with the token.
Unlike tier tokens used since The Burning Crusade, the item created can be used for any specialization since secondary attributes specific to certain roles (hit, expertise, dodge and parry) on gear has been removed with Warlords of Draenor. Attributes like bonus armor (for tanks) and spirit (for healers) can thus only be attained from necklaces, cloaks, bracers, belts, boots, rings and trinkets.
Unlike tier sets in Cataclysm and Mists of Pandaria, there is no Raid Finder version of tier 18. Instead, there are four Hellfire Citadel sets that only drop in Raid Finder mode, one for each armor type.
Each set consists of five pieces and has three ranks: normal (695), heroic (710) and Mythic (725).
T18 Death Knight - Demongaze
T18 Mage - Arcanic Conclave
T18 Monk - Hurricane's Eye
T18 Paladin - Ceaseless Vigil
T18 Shaman - Living Mountain
T18 Warlock - Deathrattle