100% Hit Chance
Channels a dreadful toxic breath which deals 413 Humanoid damage split across the enemy team. Deals additional damage if the weather is Cleansing Rain.
Your pet continues performing this attack for 3 rounds;.
World Event: Children's Week
Quest: Back To The Orphanage 
Drop: Sha of Pride [??+]
Zone: Siege of Orgrimmar (Flexible, Normal or Heroic)
Approximate Drop Rate: 1 in 125
Achievement: Going to Need More Leashes
Category: Pet Battles
Drop: Quivering Filth 
Zone: Isle of Thunder
Approximate Drop Rate: 1 in 335
Achievement: Ling-Ting's Herbal Journey
Category: Dungeons and Raids
Pet Battle: [22-23] Icecrown