For the achievement, see . [Sunreaver Onslaught ]
Sunreaver Onslaught is the Horde reputation faction introduced in Patch 5.2. It is personally led by Lor'themar Theron, Regent Lord of Quel'Thalas, and bears the namesake of the Sunreavers. Its base camp is named the Dawnseeker Promontory.
The onslaught will face off against the
Kirin Tor Offensive to lay claim to Emperor Lei Shen's island stronghold and the treasures contained therein.
Daily quests for the Sunreaver Onslaught are divided into two categories, only one of which can be chosen per day: PvE-oriented tasks, or PvP-based missions. The former involves assisting Grand Magister Rommath, Halduron Brightwing and Aethas Sunreaver in dealing with the local threats (primarily the saurok, the Zandalari and the mogu), while the latter is focused on attacking the Kirin Tor forces and defending the promontory.
Dalaran, the Sunreaver Onslaught fight to obtain powerful mogu artifacts from among the ruins of Thunder Isle, and to secure their future if the Horde falls to anarchy.
The Sunreaver Onslaught combines elements of each major hallmark of the
Thalassian military: Magi (under both the Magisters and the Sunreavers) comprise the bulk of its forces, and are supplemented by rangers, Blood Knights and Spellbreakers.
Arcane golems and powerful mana wyrms are also on hand, along with agents of the Reliquary.
The standard of the Sunreaver Onslaught
 Thunder Calls
 The Storm Gathers  Allies in the Shadows Stage 1:
 The Assault on Zeb'tula Stage 2:
 Tear Down This Wall! Stage 3:
 To the Skies! Stage 4:
 Decisive Action Stage 5:
 The Fall of Shan Bu At : exalted [90R] Life Blood
Sunreaver Onslaught dailies
Stage 4: Breaking into Stormsea Landing
Five quests from Stages 1/2 (+one Stage 1 boss), then three quests from one Stage 3 hub, then two Stage 4 quests
Stage 5: The Final Gate
All quests listed in Stage 4, then one of: