Leech Life

Pet Battle: [7-9] Desolace; [22-23] Deepholm

Pet Battle: [23-25] Krasarang Wilds

Pet Battle: [13-14] Searing Gorge

Pet Battle: [1-2] Undercity; [1-2] Tirisfal Glades; [3-6] Silverpine Forest; [12-13] Eastern Plaguelands; [22-23] Mount Hyjal

Pet Battle: [22-23] Deepholm

Pet Battle: [17-18] Winterspring

Pet Battle: [7-9] Desolace; [13-14] Tanaris; [16-17] Silithus; [23-24] Uldum

Pet Battle: [5-7] Duskwood

Pet Battle: [22-23] Deepholm

Pet Battle: [23-25] Krasarang Wilds

Pet Battle: [7-9] Northern Stranglethorn; [9-10] The Cape of Stranglethorn

Drop: Maexxna [??+]

Zone: Naxxramas

Approximate Drop Rate: unknown

Pet Battle: [23-25] The Jade Forest

Pet Battle: [13-14] Searing Gorge

Pet Battle: [18-20] Blade's Edge Mountains

Drop: Mother Smolderweb [59-60+]

Zone: Lower Blackrock Spire

Drop Rate: 1 in 1

Pet Battle: [1] Orgrimmar; [1] Gilneas; [1-2] Teldrassil; [1-2] Gilneas City; [1-2] Elwynn Forest; [1-2] Dun Morogh; [1-2] Tirisfal Glades; [3-6] Ghostlands; [3-6] Azshara; [5-7] Stonetalon Mountains; [6-7] Hillsbrad Foothills; [11-12] The Hinterlands; [12-13] Dustwallow Marsh; [12-13] Eastern Plaguelands; [14-15] Swamp of Sorrows; [16-17] Blasted Lands; [17-18] Winterspring; [20-22] Howling Fjord; [22-23] The Storm Peaks

Drop: Jadefang [85+]

Zone: Deepholm (Crumbling Depths)

Drop Rate: 1 in 1

Vendor: Eliza Killian

Zone: Icecrown

Cost: 40 (unlimited supply)

Pet Battle: [7-9] Desolace; [22-23] Deepholm

Pet Battle: [3-6] Azshara; [22-23] Deepholm; [23-24] Twilight Highlands

Event: Scourge Invasion (WotLK launch event)

Drop: Prince Tenris Mirkblood [72+]

Drop Rate: 1 in 1

Zone: Karazhan

Pet Battle: [5-7] Stonetalon Mountains

Pet Battle: [5-7] Duskwood

Time: Night