World of Warcraft: Cataclysm: Hour of Twilight
Developer: Blizzard Entertainment · Publisher: Blizzard Entertainment
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Description
Patch 4.3.0: Hour of Twilight contains the Dragon Soul Raid and three new Caverns of Time 5-man heroics, and is the end of Arena season 10. This is the largest content release since the opening of Cataclysm.
