[The Tempest Key] allows players to enter The Eye - the center palace of Tempest Keep - and defeat Kael'thas Sunstrider. This fight is required for several attunement quests. The Tempest Key is not used like an actual key, but rather, like the Drakefire Amulet, it is a passive item that attunes you to the instance.

Obtaining the Tempest Key

The Tempest Key is given after a long quest chain that begins after completing the quest-line (starts with N [70] The Hand of Gul'Dan) for the [Cipher of Damnation] in Shadowmoon Valley. Upon completing the Cipher quest, you will receive (immediately) a letter in the mail from Khadgar, asking you to travel to Shattrath City to speak to him.

Upon completing all four quests, A'dal will grant you the Tempest Key (along with [Phoenix-fire Band]) and you will be allowed to enter The Eye, Kael'thas' sanctum, for the final confrontation with the "Sun King".

Keys required for quests

The following Heroic entry keys are required, and you must be Revered with a certain faction to obtain them: