Cauterize

World Event: Midsummer Fire Festival

Vendor: Midsummer Merchant (Horde) / Midsummer Supplier (Alliance)

Cost: 350 (unlimited supply)

Vendor: Dawn-Seeker Krisek

Zone: Tanaan Jungle

Faction: Order of the Awakened - Exalted

Cost: 2000 (unlimited supply)

Quest: Home Is Where the Candle Is [73]

Zone: The Ringing Deeps

Drop: Magmadar [??+]

Zone: Molten Core

Approximate Drop Rate: 1 in 13

Pet Store 

Pet Battle: [25] The Waking Shores

Pet Battle: [13-14] Searing Gorge; [15-16] Un'Goro Crater; [15-16] Burning Steppes; [16-17] Blasted Lands; [22-23] Mount Hyjal

Vendor: Mythressa

Zone: Valdrakken

Cost: 1000 (unlimited supply)

Trading Card Game: Crown of the Heavens

Vendor: Auction House

Pet Battle: [15-16] Burning Steppes

Pet Battle: [13-14] Searing Gorge; [15-16] Burning Steppes

Pet Battle: [25] The Waking Shores

Pet Battle: [1] Dornogal; [25] The Ringing Deeps

Achievement: WoW's 10th Anniversary

Category: Feats of Strength

Pet Battle: [13-14] Searing Gorge

Promotion: Dragonflight Heroic Edition

Quest: Pandaren Spirit Tamer [1]

Zone: Vale of Eternal Blossoms

Drop: Pandaren Spirit Pet Supplies

Approximate Drop Rate: 1 in 10

Drop: Kael'thas Sunstrider [72+]

Zone: Magisters' Terrace

Approximate Drop Rate: 1 in 15

Quest: Tale of the Phoenix [70]

Zone: The Waking Shores

Quest: Mastering the Menagerie [1]

Zone: Lunarfall, Frostwall

Drop: Big Bag of Pet Supplies

Approximate Drop Rate: 1 in 33

Drop: Madness of Deathwing [??+]

Zone: Dragon Soul

Approximate Drop Rate: Unknown

World Quest: Combustible Vegetation [70]

Zone: The Forbidden Reach