Pet tamer

Pet Tamers are NPCs that the player can fight using the Pet Battle System. They are located around the world, with pets ranging from beginner's level to master.

In order to fight pet tamers for the first time, you must have the appropriate quest sending you to fight them. You obtain the first of these quests from your battle pet trainer located in either Stormwind City or Orgrimmar when your pet reaches level 3.

There are prizes and achievements for winning against pet tamers. Defeating all of the tamers in any region will open up pet battle daily quests within that region. Once you have defeated all of the pet tamers required for Taming Azeroth, you gain access to the title. Defeating 40 master tamers is the aim of Taming the World.

Eastern Kingdoms
Defeating all of the tamers in Eastern Kingdoms will earn the Taming Eastern Kingdoms achievement.

Kalimdor
Defeating all of the tamers in Kalimdor will earn the Taming Kalimdor achievement.

Outland
Defeating all of the tamers in Outland will earn the Taming Outland achievement.

Northrend
Defeating all of the tamers in Northrend will earn the Taming Northrend achievement.

Cataclysm
Defeating all of the tamers in Cataclysm content will earn the Taming Cataclysm achievement.

Pandaria
Defeating all of the tamers in Pandaria will earn the Taming Pandaria achievement.

Pandaren Spirit tamers
Defeating all of these tamers in Pandaria will earn the Pandaren Spirit Tamer achievement.

Warlords of Draenor
Defeating all of these tamers in Draenor will earn the Taming Draenor achievement.

Pet experience bonus
Pet Tamers apply a trainer multiplier for pet XP earnt by defeating them. The exact multiplier varies between trainers.
 * T = 0.1 when fighting most Menagerie battles (Squirt is a notable exception at T=5.0)
 * T = 1.0 when fighting wild pet battles (non-tamer battles)
 * T = 2.0 when fighting any Celestial Tournament tamer
 * T = 2.5 when fighting Zunta, Julia Stevens, Dagra the Fierce, or Old MacDonald
 * T = 3.0 when fighting any other Vanilla WoW tamer, Outlands Tamer, Northrend Tamer, or Cataclysm Tamer
 * T = 5.0 when fighting most WoD tamers, any Pandaria tamer, the Feasel brothers, and Little Tommy Newcomer.
 * T = 6.0 when fighting Ashlei