Miscellaneous Undead: WoW Battle Pets

Drop: Professor Putricide [??+]

Zone: Icecrown Citadel

Approximate Drop Rate: Unknown

Vendor: Slimy

Zone: Acherus: The Ebon Hold (Death Knight Order Hall)

Cost: 1000 (unlimited supply)

Profession: Archaeology - Tol'vir

Artifact: [Crawling Claw]

World Event: Hallow's End

Quest: The Creepy Crate [10] (Alliance)/(Horde)

Drop: The Lich King [??+]

Zone: Icecrown Citadel

Approximate Drop Rate: Unknown

Trading Card Game: Timewalkers: War of the Anicents

Vendor: Slimy

Zone: Acherus: The Ebon Hold (Death Knight Order Hall)

Cost: 1000 (unlimited supply)

Drop: Loatheb [??+]

Zone: Naxxramas

Approximate Drop Rate: 1 in 7

Drop: Maexxna [??+]

Zone: Naxxramas

Approximate Drop Rate: 1 in 6

Promotion: Heroes of the Storm

Drop: Azgalor [??+]

Zone: Hyjal Summit

Approximate Drop Rate: 1 in 25

Achievement: Raiding with Leashes

Category: Collect

Drop: Anub'arak [??+]

Zone: Trial of the Crusader

Approximate Drop Rate: Unknown

Vendor: Ravenspeaker Skeega

Zone: Warspear

Faction: Arakkoa Outcasts - Revered

Cost: 1000 2000 (unlimited supply)

Vendor: Shadow-Sage Brakoss

Zone: Stormshield

Faction: Arakkoa Outcasts - Revered

Cost: 1000 2000 (unlimited supply)

Drop: Anetheron [??+]

Zone: Hyjal Summit

Approximate Drop Rate: 1 in 20

Drop: Gluth [??+]

Zone: Naxxramas

Approximate Drop Rate: 1 in 6

Pet Battle: [20-22] Borean Tundra; [20-22] Howling Fjord; [21-22] Sholazar Basin; [21-22] Grizzly Hills; [22-23] Zul'Drak; [22-23] The Storm Peaks; [22-23] Icecrown; [22-23] Dragonblight; [22-23] Crystalsong Forest

Event: Scourge Invasion (WotLK launch event)

Drop: Prince Tenris Mirkblood

Zone: Karazhan [72+]

Drop Rate: 1 in 1

Vendor: Slimy

Zone: Acherus: The Ebon Hold (Death Knight Order Hall)

Cost: 1000 (unlimited supply)

Quest: Mastering the Menagerie [??]

Zone: Lunarfall, Frostwall

Drop: Big Bag of Pet Supplies

Approximate Drop Rate: 1 in 50

Drop: Darktide Boneshell, Darktide Husk

Zone: Shadowmoon Valley (Draenor)

Approximate Drop Rate: 1 in 50