Battle Pet Tamers: Eastern Kingdoms

Here is my Quicklist Guide to the second tier of Pet Trainer Quests. This is a quick reference to see what type of pets you will need to defeat the trainers easily. On Trainers who have the same type of pet for all 3 pets in their party, I would recommend you bring at least two pets that are the opposite type (i.e. bring three appropriate leveled Mechanical types to fight three trainer Beasts). Don't rely on fighting all three of their pets with just one of yours, despite the fact that they will have stronger attacks and defeat them quicker.

Battle Pet Tamers: Eastern Kingdoms

To defeat these trainers with maximum efficiency, you will need pets of the following type:
Beast, Mechanical, Dragonkin, Critter, Humanoid, Flying, Magic, Aquatic

David Kosse - The Hinterlands – Level 13
Quickteam List – Level 13 Beast, Mechancial, Dragonkin
Pet 1: Subject 142 – Critter – Use Beast
Pet 2: Corpsefeeder – Beast – Use Mechanical
Pet 3: Plop – Magic – Use Dragonkin

Deiza Plaguehorn – Easter Plaguelands – Level 14
Quickteam List – Level 14 Mechanical, Critter
Pet 1: Carrion – Beast – Use Mechanical
Pet 2: Bleakspinner – Beast - Use Mechanical
Pet 3: Plaguebringer – Undead – Use Critter

Kortas Darkhammer – Searing Gorge – Level 15
Quickteam List – Level 15 Humanoid
Pet 1: Garnestrasz – Dragonkin – Use Humanoid
Pet 2: Veridia – Dragonkin – Use Humanoid
Pet 3: Obsidion – Dragonkin – Use Humanoid

Everessa – Swamp of Sorrows – Level 16
Quickteam List – Level 16 Flying, Magic, Mechanical
Pet 1: Croaker – Aquatic – Use Flying
Pet 2: Dampwing – Flying – Use Magic
Pet 3: Anklor – Beast – Use Mechanical

Durin Darkhammer- Burning Steppes – Level 17
Quickteam List – Level 17 Magic, Beast, Aquatic
Pet 1: Comet – Flying – Use Magic
Pet 2: Ignious – Critter – Use Beast
Pet 3: Moltar – Elemental – Use Aquatic

*Author's Note: In writing this guide, I used various references from wowhead and warcraftpets.com. I did not write this guide as I was doing each trainer. Some information might be wrong. Please feel free to comment and I will change it as needed.

David Kosse (Hinterlands) is actually further east at 62, 54. The in-game map is currently wrong.

David Kosse in The Hinterlands.
Deiza Plaguehorn in Eastern Plaguelands (All 3 companions are level 14 Bleakspinner is Beast, Carrion is Beast and Plaguebringer is Undead)
Kortas Darkhammer in Searing Gorge (All 3 Companions are level 15 Dragonkin Garnestrasz, Obsidion and Veridia)
Everessa in Swamp of Sorrows (All 3 companions are level 16 Croaker is Aquatic, Anklor is Beast and Dampwing is Flying)
Durin Darkhammer in Burning Steppes (All 3 companions are level 17 Moltar is Elemental, Ignious Critter and Comet is Flying)