Dont miss this.
http://us.battle.net/wow/en/blog/13108941/major-payne's-advanced-pet-battles-training-zunta-2-28-2014
Nice of Blizzard to come up with something like this. Havent had time to do it myself yet.
Major Payne pet training challenge
Re: Major Payne pet training challenge
It is neat that they suggest this, but many of us would have to go tame pets specifically for this battle (no level 1s!)
Re: Major Payne pet training challenge
I couldn't do it with the level 1's I had, without failing the no dying criteria. So went out and tamed two new level ones, it's not that much work as you don't even have to do any levelling up. One-shotted even with misses. Since you only have one basic attack this exercise is more about pet knowledge and selection. Was pretty fun challenge. I for one am looking forward to more challenges they come up with.
Re: Major Payne pet training challenge
I actually had a couple of extra level ones that were duplicates that I used and they fit the criterion: Death Adder Hatchling SS but green, and a Black Fuse Bombling (don't know what breed). I actually one shotted, but it was incredibly close. Death Adder had 1 hit point left, BFB had 5 
Re: Major Payne pet training challenge
I liked the suggestion in the comments on the post saying that to make it a real challenge, you shouldn't use the obvious favorable Mechincal/Beast/Flying pets against his beast and critter. See if you can still beat him with only two pets, both level 1, but from the Undead, Elemental, Critter or Humanoid families. Really test your pet battling skills.