Expunge

Drop: World Drop

Creature: Oozes, Slimes and Worms

Approximate Drop Rate: [Oozing Bag] 1 in 25

Approximate Drop Rate: [Disgusting Oozeling] in bag 1 in 85

Overall Approximate Drop Rate: 1 in 2,125

Drop: Quivering Filth [90+]

Zone: Isle of Thunder

Approximate Drop Rate: unknown

Pet Battle: [11-12] The Hinterlands

Drop: Primordius [??+]

Zone: Throne of Thunder (LFR)

Approximate Drop Rate: unknown

Pet Battle: [20-22] Borean Tundra

World Event: Love is in the Air

Dropped By: Apothecary Hummel [87+]

Zone: Shadowfang Keep

Drop Rate: 1 in 65 dropped (available 14 days per year)

Drop: Viscidus [??+]

Zone: Temple of Ahn'Qiraj

Approximate Drop Rate: unknown

Drop: Primordius [??+]

Zone: Throne of Thunder (Normal or Heroic)

Approximate Drop Rate: unknown