Here is a little known thing I discovered. It may be considered an exploit I don't know, but I hope not. There is a bug in the mechanics of the Sinister Squashling or they did not fully explain one if the pet's abilities in the tool tip. Did you know your Sinister Sqaushling can heal for about 800hp...

In my opinion the most powerful pet in the game is the Flayer Youngling . He can be used to solo two of the pandaren elemental pet bosses. Combine that with one or two very low level pets and you can ding up to 6 levels in a single battle (>5000xp with the [item=]safari hat[/item])! This is how to s...

Not sure if this was a bug but I got lucky. I got Mr Grubbs in about 10 min and not from the mobs this guide says to farm. I got it off my second Blighthound while doing a different quest. If you're having trouble kill a couple of them I think.