Critter Battler of Eastern Kingdoms

Critter

For all EK, Kalimdor and Northrend Family Battlers - Critter I used the same team

Damp Skrat B/B (Barbed Stinger, Nibble, Great Sting)
Lovebird Hatchling S/S (Alpha Strike, Lovestruck, Pheromones)
Perky Pug P/S (Bite, Buried Treasure, Trample)

I started out with Great Sting, then swapped to Lovebird to use Pheromones - using these two abilities as much as possible. Use Lovestruck and Nibble to last longer and let the DoTs do more damage. Perky Pug can be brought in to clean up and heal itself.

The only one i struggled with was Major Payne, I brought out Lovebird First instead and used Pheromones, then immediately stunned it - keeping the enemy Bear pet in the backline as much as I could.

The NPC's for the Family Battler of Eastern Kingdoms achievement can be found in the following locations from the north to south:
It doesn't seem that besides going up to level 25 there are any changes to the pets. Zunta still uses two pets which are both common in rarity when engaged with a full level 25 team.

Notes:
The battles are daily, this means that to complete the meta you will need to revisit the trainers for a total of 10 days.
And to avoid anything not completing it seem it is best to complete these on an alliance character.

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• Deiza Plaguehorn in Eastern Plaguelands. Her pets are Beast - Beast - Undead.
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• David Kosse in The Hinterlands. His pets are Beast - Magic - Critter.
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• Kortas Darkhammer in Searing Gorge. His 3 pets are Dragonkins.
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• Durin Darkhammer in Burning Steppes. His pets are Flying - Critter - Elemental.
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• Lindsay in Redridge Mountains. She uses 3 Critter pets.
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• Everessa in Swamp of Sorrows. Her pets are Beast - Aquatic - Flying.
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• Lydia Accoste in Deadwind Pass next to Karazhan tower. Her pets are Undead - Elemental - Undead.
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• Julia Stevens in Elwynn Forest. She seems to be using 2 Beast pets.
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• Old MacDonald in Westfall. His pets are Flying - Mechanical - Critter.
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• Eric Davidson in Duskwood. He uses 3 Beast pets.
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• Steven Lisbane in Northern Stranglethorn Vale. His pets are Magic -Beast - Beast.
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• Bill Buckler in The Cape of Stranglethorn. His pets are Humanoid - Flying - Flying.
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Quick list for Paste/Tomtom:

/way #23 67.0 52.4 Deiza Plaguehorn
/way #26 62.8 54.6 David Kosse
/way #32 35.6 27.8 Kortas Darkhammer
/way #36 25.6 47.6 Durin Darkhammer
/way #49 33.2 52.6 Lindsay
/way #51 76.6 41.6 Everessa
/way #42 40.2 76.6 Lydia Accoste
/way #37 41.6 83.6 Julia Stevens
/way #52 60.8 18.6 Old MacDonald
/way #47 20.2 44.2 Eric Davidson
/way #50 46.0 40.6 Steven Lisbane
/way #210 51.6 73.4 Bill Buckler


As you might have noticed, as of Patch 12.0.0, you can only challenge the Pet Battles Trainers in Kalimdor, Eastern Kingdoms and Northrend once per day.

Which means that for the new meta achievements being introduced with Midnight's Pre Patch, it will take a minimum of 10 days to complete (one day per pet family).