Complete all mission objectives in the “A Sinister Turn” mission.
Purchase StarCraft II Heart of the Swarm Collector’s Edition.
Complete the “Whispers of Doom” mission on Normal difficulty with 3 or more Stalkers.
Kill all Protoss in the “A Sinister Turn” mission on Normal difficulty.
Mutate a Lair during the first 285 seconds of a Melee game.