Purchase StarCraft II Wings of Liberty Collector’s Edition.
Register a copy of the World of Warcraft: Mists of Pandaria Collector’s Edition or Digital Deluxe Edition.
Complete all 29 Wings of Liberty campaign missions on Brutal difficulty.
Complete the Wings of Liberty campaign under 8 hours of total played mission time on Normal difficulty.
Purchase World of Warcraft Cataclysm Collector’s Edition.