This was a great tip - I increased my Draenic Pet Battler from a little over 50 to over 340 using the Nexus Whelpling and the Celestial Dragon. And even better was leveling somewhere around 40 pets to 25 (anything over level 7 could basically take the first AOE)! This. SO MUCH THIS! :D Level 1 magi...

Xu-Fu, Cub of Xuen
Nether Faerie Dragon
Magical Crawdad / spiritbound crab

Moonlight from NFD + healing from crab + dmg from xu-fu. Can be fun