C'Thun (pronounced "Kah-Thoon" or "Kathune") is the final boss in the Temple of Ahn'Qiraj. Until the release of the original Naxxramas and later The Burning Crusade, C'Thun was considered the most difficult raid boss in the game. In its first inception, C'Thun was considered to be unbeatable with the current level of gear. However, following a number of hot fixes, phase two was made considerably more controllable, and the first kills were registered in a matter of hours following one such hot fix.