Keeyo

His pets:

Buzzbeak (flying, weak to magic)
Tikka (beast, weak to mechanical)
Milo (critter, weak to beast)

I used

1. Nexus Whelpling 1/2/2
2. Iron Starlette 1/1/1
3. pet of your choosing (I had Darkmoon Monkey 1/1/1)

Start with Arcane Storm, then use Mana Surge. This will kill Buzzbeak.
When Iron Starlette comes in, use Wind-Up twice. It will eliminate Tikka.

Milo should die after using Wind-Up, Supercharge, Wind-Up, but if not
use your last pet to finish the last bit of HP off with strong beast attacks.

Keeyo is located at:

/way Vol'dun 57.0 49.0 Keeyo

Note before starting: I tried my very best to not include store bought pets, TCG pets, pets that you have to get a specific breed, and very hard to get pets. For a few fights I did have to use pets with a specific breed because I was spending hours trying to perfect a strat and it just wasn't working without a certain breed. Also, a lot of the BfA fights don't have rigid movesets like previous expansions did. For a lot of these new fights, you have to be a bit more flexible. Use these strats as a guideline :) Please feel free to send me a message in-game at Gabrielle-Whisperwind. I do not usually check the comments because I have *literally* thousands of posts and I will most definitely miss a question, or any suggestions on tweaking a strat.

The rest of the strats you can find here: Family Battler

Addons I definitely recommend:
Battle Pet BreedID - helps you determine which breed your pet is!
Rematch - changes the Pet Journal UI and adds SO much for you for sorting, adds a leveling pet queue, etc. There's seriously a lot. My favorite is that it lets you save teams!
PetTracker - Shows you the cooldowns of the enemy team. VERY IMPORTANT. Also shows you trainers on your map. For some reason not all of them are listed in the basic WoW UI.

Hobbyist Aquarist
Emerald Turtle (1/1/1), Hydraling (1/1/1), Darkmoon Turtle (1/1/1)
1. Shell Shield
2. Emerald Bite until Buzzbeak dies(usually 3-4, if it takes 5, restart). If your Emerald Turtle dies first, restart
3. Tikka comes in, Emerald Bite
4. Shell Shield
5. Emerald Bite until your Emerald Turtle dies
6. Bring in Hydraling and Call Lightning
7. Deep Bite
8. Deep Bite and your Hydraling dies
9. Bring in Darkmoon Turtle and Shell Shield
10. Headbutt
11. Bite until Milo dies

Beast Mode
Feline Familiar (1/1/1), Ragepeep (2/1/2), Darkshore Cub (1/1/2- didn't need)
1. Stoneskin
2. Onyx Bite(should take 3-4, if it takes more than that, restart)
3. Tikka comes in, Onyx Bite
4. Onyx Bite
5. Stoneskin but your Feline Familiar dies
6. Bring in Ragepeep, Nature's Ward
7. Preen
8-10. Rampage and Tikka dies on the second Rampage. Milo comes in on Round 10.
11. Nature's Ward
12. Nature's Ward
13. Preen
14-16. Rampage and Milo should die

Critters with Huge Teeth
Scooter the Snail (1/2/2), any S/S rabbit (2/2/1), Winter Reindeer (1/2/2- didn't need)
1. Shell Shield
2. Ooze Touch
3. Ooze Touch
4. Ooze Touch
5. Ooze Touch and Buzzbeak dies
6. Ooze Touch
7. Shell Shield
8. Shell Shield
9. Ooze Touch and Scooter the Snail dies
10. Your rabbit comes in and uses Dodge
11. Flurry
12. Flurry
13-14. Burrow and Tikka should die
15. Dodge
16. Flurry
17. Flurry
18. Flurry
19-20. Burrow
21. Dodge
22. Flurry
23. Flurry
24. Flurry

Dragons Make Everything Better
Sprite Darter Hatchling (2/1/1), Nexus Whelpling (1/2/2), Emmigosa (1/2/1)
1. Moonfire
2. Arcane Blast
3. Arcane Blast
4. Arcane Blast and Buzzbeak dies
5. Arcane Blast
6. Arcane Blast
7. Evanescence
8. Arcane Blast
9. Arcane Blast and Tikka dies
10. Moonfire
11. Arcane Blast and your Sprite Darter Hatchling may die. If it doesn't die, Evanescence and continue to Arcane Blast
12. If your Sprite Darter Hatchling dies, bring out your Nexus Whelpling and Arcane Storm and then Mana Surge

Element of Success
Ashstone Core (1/2/2), Fozling (1/1/1), Tiny Bog Beast (1/2/2)
1. Stoneskin
2. Feedback
3. Feedback
4. Feedback
5. Feedback and Buzzbeak dies
6. Feedback
7. Feedback
8. Stoneskin
9. Feedback and your Ashstone Core dies
10-12. Fozling comes in, Quake and Tikka dies
13. Stoneskin
14. Crush and Fozling dies
15-17. Tiny Bog Beast comes in, Rampage

Fun with Flying
Squawkling (2/1/1), Mechanical Axebeak (1/2/1), Bat (1/1/1- didn't need)
1. Arcane Storm
2. Arcane Blast
3. Arcane Blast
4. Arcane Blast
5. Arcane Blast and Buzzbeak dies
6. Arcane Storm
7. Arcane Blast(You may die instead if Tikka goes first, if so continue on to #9)
8. Arcane Blast and your Squawkling dies
9. Bring in Mechanical Axebeak and Decoy
10-12. Haywire and Tikka will die during and then Milo will come in
13. Alpha Strike
14. Alpha Strike
15. Alpha Strike
16. Haywire

My Squawkling was a B/B breed. You may not have issues with #7.

Human Resources
Wretched Servant (2/2/1), Anubisath Idol (2/2/1), Bonkers (2/2/2)
1. Weakness
2. Nether Blast
3. Nether Blast
4. Nether Blast
5. Nether Blast and Buzzbeak dies
6. Nether Blast
7. Nether Blast but Tikka may Dodge if they went first. If your Wretched Servant dies, skip to #10
8. Nether Blast
9. Nether Blast and Wretched Servant dies
10. Switch to Anubisath Idol and Demolish until Tikka dies
11. Stoneskin
12. Demolish until either your Anubisath Idol or Milo dies
13. If your Anubisath Idol dies, bring in Bonkers and bite until Milo dies

Magician's Secrets
Arcane Eye (1/1/2), Enchanted Broom (2/1/2), Sapphire Cub (2/2/2- didn't need)
1. Eyeblast
2. Focused Beams
3. Focused Beams
4. Focused Beams
5. Focused Beams and Buzzbeak dies
6. Eyeblast
7. Focused Beams
8. Focused Beams and Arcane Eye dies
9. Bring in Enchanted Broom and Wind-Up
10. Wind-Up again and Tikka dies
11. Sandstorm
12. Wind-Up
13. Wind-Up
14. Wind-Up
15. Wind-Up
16. Wind-Up
17. Wind-Up

Machine Learning
Tinytron (1/2/1), Clockwork Gnome (1/1/2), De-Weaponized Mechanical Companion (2/2/2)
1. Supercharge
2. Arcane Blast
3. Arcane Blast
4. Arcane Blast and Buzzbeak dies
5. Poison Protocol
6. Arcane Blast
7. Supercharge
8. Arcane Blast
9. Arcane Blast and Tinytron dies
10. Bring in Clockwork Gnome and Metal Fist
11. Metal Fist and Tikka dies
12. Launch Rocket
13. Launch Rocket
14. Launch Rocket
15. Launch Rocket
16. Metal Fist
17. Metal Fist and Clockwork Gnome dies
18. Bring in De-Weaponized Mechanical Companion and Thrash

Not Quite Dead Yet
Soulbroken Whelpling (1/1/2), Blightbreath (2/2/2), Cursed Birman (1/2/2)
1. Arcane Storm
2. Spiritfire Bolt
3. Spiritfire Bolt
4. Spiritfire Bolt
5. Arcane Storm
6. Spiritfire Bolt and Soulbroken Whelpling dies
7. Blightbreath comes in, Slime
8. Toxic Smoke
9. Slime
10. Toxic Smoke and Tikka dies
11. Slime
12. Toxic Smoke
13. Slime and Blightbreath dies
14. Bring in Cursed Birman and Pounce
15. Pounce