Poison Lash

Vendor: Irisee

Zone: Icecrown

Cost: 40 (unlimited supply)

Drop: Dislodged Blockage

Zone: The Ringing Deeps

Drop Rate: 1 in 1

Drop: Rockweed Shambler [50]

Zone: Nazjatar

Approximate Drop Rate: Unknown

Vendor: Jenoh

Zone: Vol'dun

Cost: 150 (unlimited supply)

Vendor: Madeline Netley

Zone: Stormsong Valley

Cost: 150 (unlimited supply)

Drop: Carnivorous Lasher [50]

Zone: Nazjatar

Approximate Drop Rate: Unknown

Vendor: Ayla Shadowstorm

Zone: Molten Front

Cost: 1500 (unlimited supply)

Achievement: Going to Need More Leashes

Category: Collect

Pet Battle: [25] Isle of Dorn; [25] The Ringing Deeps; [25] Hallowfall

Achievement: Ling-Ting's Herbal Journey

Category: Pandaria Dungeon

Pet Battle: [25] Isle of Dorn; [25] The Ringing Deeps; [25] Hallowfall

Pet Battle: [25] Revendreth

Drop: Nightfarm Growthling

Zone: Hallowfall

Drop Rate: 1 in 1

Drop: Grove Vine

Zone: The Dreamgrove (Druid Order Hall)

Approximate Drop Rate: 1 in 2 options

Achievement: Family Familiar

Category: Battle

Profession: Draenor Herbalism

Drop: Disturbed Podling

Zone: Frostfire Ridge, Frostwall, Gorgrond, Lunarfall, Nagrand (Draenor), Shadowmoon Valley (Draenor), Spires of Arak, Talador

Approximate Drop Rate: 1 in 175

Pet Battle: [25] Tiragarde Sound

World Event: Hallow's End

Item: Crudely Wrapped Gift (obtained via daily Hallow's End quest)

Daily Instance: Headless Horseman [??+]

Drop Rate: 1 in 20 dropped (avg. all sources; available 15 days per year)

Vendor: Woim (H) / Pippi (A)

Zone: Tirisfal Glades / Stormwind City

Cost: 150 (unlimited supply)

Scenario: Island Expeditions

Approximate Drop Rate: Unknown

Pet Battle: [6-7] Wetlands

Achievement: That's a Lot of Pet Food

Category: Collect

Pet Battle: [24-25] Vale of Eternal Blossoms

Vendor: Burt Macklyn

Zone: Burning Steppes

Cost: 1 (unlimited supply)