Zerg Companions: WoW Battle Pets
Select a pet:
Baneling — [Baneling]
Promotion: StarCraft II: Heart of the Swarm Collector's Edition
Zergling — [Zergling Leash]
Promotion: World of Warcraft Collectors Edition
TIP: You can filter pets in a wide variety of ways using the pet filters. You can even apply multiple filters to really zero in what you're seeking.