Patch 7.1.0: Return to Karazhan is Legion's first medium patch. It features Return to Karazhan, a mythic-only dungeon that takes place in Karazhan; the Trial of Valor raid; and a continuation of the Suramar campaign with the "Insurrection" chapter. Opening dates for the Nighthold raid were announced a few months after the patch's release. The patch was deployed on the Public Test Realm on 14 September 2016. Its release date was announced on 14 October 2016.
As conflict raged across the Broken Isles, the Burning Legion focused its efforts on Karazhan, Medivh's ancient seat of power, hoping to find anything they could use to keep the tide of battle moving in their favor. Khadgar and a small band of heroes were successful in stopping this menace, which gave the forces still fighting on the Isles the momentum they needed to strike. Heroes, aided by First Arcanist Thalyssra, Tyrande, and Lady Liadrin, led an insurrection against Grand Magistrix Elisande, regent of the ancient city of Suramar. With the city liberated, the heroes then struck at The Nighthold—ending Gul'dan's reign of terror at last. Azeroth's champions now possess the Eye of Aman’Thul—and the power they need to close the Tomb of Sargeras forever.